GISTAR

 
  • Increase font size
  • Default font size
  • Decrease font size
Home References

References

E-mail

One initiative of GISTAR is to provide an update reference list on Terrain Analysis, so in this page the main references will be regularly updated (every 15th of the month) 

 

Last Update: May, 2014   [If someone is interested to add new references please contact Andrea Petroselli ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it )] 

Update:

09-26-2011: thanks to Paolo Tarolli.

10-27-2011: thanks to Michele Di Lazzaro.

09-27-2013: thanks to Nigel Cowburn. 

 

in press


Ahmadi, H., Das, A., Pourtaheri, M., Komaki, C.B., Khairy, H.  2014.  Redefining the watershed line and stream networks via digital resources and topographic map using GIS and remote sensing (case study: the Neka River's watershed)  Natural Hazards pp. 1-12

 

2014


Barnes, R., Lehman, C., Mulla, D. 2014. Priority-flood: An optimal depression-filling and watershed-labeling algorithm for digital elevation models. Computers and Geosciences 62, pp. 117-127.

Barnes, R., Lehman, C., Mulla, D. 2014. An efficient assignment of drainage direction over flat surfaces in raster digital elevation models. Computers and Geosciences 62 , pp. 128-135

Bera, A.K., Singh, V., Bankar, N., Salunkhe, S.S., Sharma, J.R.  2014.  Watershed Delineation in Flat Terrain of Thar Desert Region in North West India - A Semi Automated Approach Using DEM  Journal of the Indian Society of Remote Sensing 42 (1), 187-199

Biron, P.M., Choné, G., Buffin-Bélanger, T., Demers, S., Olsen, T. 2013. Improvement of streams hydro-geomorphological assessment using LiDAR DEMs. Earth Surface Processes and Landforms 38 (15) 1808-1821

Biswal, B., Nagesh Kumar, D.  2014  What mainly controls recession flows in river basins?  Advances in Water Resources 65, 25-33.

Dosskey, M.G., Qiu, Z., Kang, Y. 2013. A comparison of dem-based indexes for targeting the placement of vegetative buffers in agricultural watersheds. Journal of the American Water Resources Association 49 (6) 1270-1283

Eisank, C., Smith, M., Hillier, J.  2014.  Assessment of multiresolution segmentation for delimiting drumlins in digital elevation models.  Geomorphology 214, pp. 452-464

Khan, A., Richards, K.S., Parker, G.T., McRobie, A., Mukhopadhyay, B.  2014.  How large is the Upper Indus Basin? The pitfalls of auto-delineation using DEMs.  Journal of Hydrology 509, 442-453

Mashimbye, Z.E., De Clercq, W.P., Van Niekerk, A. 2014. An evaluation of digital elevation models (DEMs) for delineating land components Geoderma 213 , pp. 312-319.

Pilesjö, P., Hasan, A.  2014.  A triangular form-based multiple flow algorithm to estimate overland flow distribution and accumulation on a digital elevation model.  Transactions in GIS 18 (1) 108-124.

Saran, S., Sterk, G., Nair, R., Chatterjee, R.S.  2014.  Estimation of near surface soil moisture in a sloping terrain of a Himalayan watershed using ENVISAT ASAR multi-incidence angle alternate polarisation data.  Hydrological Processes 28 (3), pp. 895-904

Singh, P.K., Mishra, S.K., Jain, M.K.  2014  A review of the synthetic unit hydrograph: From the empirical UH to advanced geomorphological methods.  Hydrological Sciences Journal, 59 (2), 239-261

Su, Y., Guo, Q.  2014.  A practical method for SRTM DEM correction over vegetated mountain areas.  ISPRS Journal of Photogrammetry and Remote Sensing,  87, 216-228

Taner San, B.  2014.  An evaluation of SVM using polygon-based random sampling inlandslide susceptibility mapping: The Candir catchment area (western Antalya, Turkey). International Journal of Applied Earth Observation and Geoinformation , 26(1), 399-412

 

Zhang, P., Liu, R., Bao, Y., (...), Yu, W., Shen, Z.  2014. Uncertainty of SWAT model at different DEM resolutions in a large mountainous watershed.  Water Research, 53, 132-144.

 

2013


 

Anastasiadis, S., Boglis, A., Pechlivanidis, I.G., Lekkas, D.F., Baltas, E. 2013. Application of gis based clark's unit hydrograph and transfer function model to describe runoff response in a small catchment, case study: Lykoremma river, Greece. Fresenius Environmental Bulletin 22 (7 B) , pp. 2152-2158

Bernini, A., Franchini, M. 2013. A Rapid Model for Delimiting Flooded Areas. Water Resources Management 27 (10) , pp. 3825-3846

Besnard, A.G., La Jeunesse, I., Pays, O., Secondi, J. 2013. Topographic wetness index predicts the occurrence of bird species in floodplains. Diversity and Distributions 19 (8) , pp. 955-963

Brubaker, K.M., Myers, W.L., Drohan, P.J., Miller, D.A., Boyer, E.W. 2013 The use of LiDAR terrain data in characterizing surface roughness and microtopography. Applied and Environmental Soil Science 2013 , art. no. 891534

Callow, J.N., Boggs, G.S. 2013. Studying reach-scale spatial hydrology in ungauged catchments. Journal of Hydrology 496 , pp. 31-46

Cavazzi, S., Corstanje, R., Mayr, T., Hannam, J., Fealy, R. 2013 Are fine resolution digital elevation models always the best choice in digital soil mapping? Geoderma 195-196 , pp. 111-121

Chaplot, V. 2013. Impact of terrain attributes, parent material and soil types on gully erosion. Geomorphology 186 , pp. 1-11 

Chen, X., Hu, J., Hu, H. 2013 Multiple flow direction algorithm based on extending neighborhood terrain. International Journal of Advancements in Computing Technology 5 (1) , pp. 892-898

Couturier, A., Daroussin, J., Darboux, F., Souchère, V., Le Bissonnais, Y., Cerdan, O., King, D. 2012. Improvement of surface flow network prediction for the modeling of erosion processes in agricultural landscapes. Geomorphology 183 , pp. 120-129

Degiorgis, M., Gnecco, G., Gorni, S., Roth, G., Sanguineti, M., Taramasso, A.C. 2013. Flood hazard assessment via threshold binary classifiers: Case study of the tanaro river basin. Irrigation and Drainage 62 (S2) , pp. 1-10

El Bastawesy, M., Ali, R.R. 2013 The use of GIS and remote sensing for the assessment of waterlogging in the dryland irrigated catchments of Farafra Oasis, Egypt. Hydrological Processes 27 (2) , pp. 206-216

Falcão, A.P., Mazzolari, A., Gonçalves, A.B., Araújo, M.A.V.C., Trigo-Teixeira, A. 2013. Influence of elevation modelling on hydrodynamic simulations of a tidally- dominated estuary. Journal of Hydrology 497 , pp. 152-164

Grimaldi, S., Petroselli, A., Arcangeletti, E., Nardi, F. 2013. Flood mapping in ungauged basins using fully continuous hydrologic-hydraulic modeling. Journal of Hydrology 487 , pp. 39-47 

Hancock, G.R., Murphy, D.V., Li, Y. 2012. Soil properties and environmental tracers: A DEM based assessment in an Australian Mediterranean environment. Geomorphology 183 , pp. 45-57

Huang, P.-C., Lee, K.T. 2013. An efficient method for DEM-based overland flow routing. Journal of Hydrology 489 , pp. 238-245

Kinsey-Henderson, A.E., Wilkinson, S.N. 2012. Evaluating Shuttle radar and interpolated DEMs for slope gradient and soil erosion estimation in low relief terrain. Environmental Modelling and Software 40 , pp. 128-139

Lang, M., McCarty, G., Oesterling, R., Yeo, I.-Y. 2013. Topographic metrics for improved mapping of forested wetlands. Wetlands 33 (1) , pp. 141-155 

Mehnatkesh, A., Ayoubi, S., Jalalian, A., Sahrawat, K.L. 2013. Relationships between soil depth and terrain attributes in a semi arid hilly region in western Iran. Journal of Mountain Science 10 (1) , pp. 163-172

Nardi, F., Biscarini, C., Di Francesco, S., Manciola, P., Ubertini, L. 2013. Comparing a large-scale dem-based floodplain delineation algorithm with standard flood maps: The tiber river basin case study. Irrigation and Drainage 62 (S2) , pp. 11-19.

Petaccia, G., Natale, E. 2013. Orsadem: A one-dimensional shallow water code for flood inundation modelling. Irrigation and Drainage 62 (S2) , pp. 29-40

Petroselli, A., Vessella, F., Cavagnuolo, L., Piovesan, G., Schirone, B. 2013. Ecological behavior of Quercus suber and Quercus ilex inferred by topographic wetness index (TWI). Trees - Structure and Function , 27(5), pp. 1201-1215

Poppenga, S.K., Gesch, D.B., Worstell, B.B. 2013. Hydrography Change Detection: The Usefulness of Surface Channels Derived From LiDAR DEMs for Updating Mapped Hydrography. Journal of the American Water Resources Association 49 (2) , pp. 371-389

Pulighe, G., Fava, F. 2013 DEM extraction from archive aerial photos: Accuracy assessment in areas of complex topography. European Journal of Remote Sensing 46 (1) , pp. 363-378 

Ramachandra, T.V., Aithal, B.H., Kumar, U., Joshi, N.V. 2013. Prediction of shallow landslide prone regions in undulating terrains. Disaster Advances 6 (1) , pp. 54-64

Rueda, A., Noguera, J.M., Martínez-Cruz, C. 2013. A flooding algorithm for extracting drainage networks from unprocessed digital elevation models. Computers and Geosciences 59 , pp. 116-123

Rulli, M.C., Offeddu, L., Santini, M. 2013. Modeling post-fire water erosion mitigation strategies. Hydrology and Earth System Sciences 17 (6) , pp. 2323-2337

Schwanghart, W., Groom, G., Kuhn, N.J., Heckrath, G. 2013. Flow network derivation from a high resolution DEM in a low relief, agrarian landscape. Earth Surface Processes and Landforms 38 (13) , pp. 1576-1586

Saeedrashed, Y., Guven, A. 2013. Estimation of Geomorphological Parameters of Lower Zab River-Basin by Using GIS-Based Remotely Sensed Image. Water Resources Management 27 (1) , pp. 209-219

Shaw, D.A., Pietroniro, A., Martz, L.W. 2013.Topographic analysis for the prairie pothole region of Western Canada. Hydrological Processes 27 (22) , pp. 3105-3114 

Shen, Z.Y., Chen, L., Liao, Q., Liu, R.M., Huang, Q. 2013. A comprehensive study of the effect of GIS data on hydrology and non-point source pollution modelling. Agricultural Water Management 118 , pp. 93-102

Shook, K., Pomeroy, J.W., Spence, C., Boychuk, L. 2013. Storage dynamics simulations in prairie wetland hydrology models: Evaluation and parameterization. Hydrological Processes. 27 (13) , pp. 1875-1889

Steinfeld, C.M.M., Kingsford, R.T., Laffan, S.W. 2012 Semi-automated GIS techniques for detecting floodplain earthworks Hydrological Processes,  Hydrological Processes 27 (4) , pp. 579-591

Varhola, A., Coops, N.C. 2013. Estimation of watershed-level distributed forest structure metrics relevant to hydrologic modeling using LiDAR and Landsat. Journal of Hydrology 487 , pp. 70-86

Zhang, H., Yang, Q., Li, R., Liu, Q., Moore, D., He, P., Ritsema, C.J., Geissen, V. 2013. Extension of a GIS procedure for calculating the RUSLE equation LS factor. Computers and Geosciences 52 , pp. 177-188 

Zhang, L., Guilbert, E. 2013. Automatic drainage pattern recognition in river networks. International Journal of Geographical Information Science 27 (12) , pp. 2319-2342

Zhang, H., Huang, G.H., Wang, D. 2013. Establishment of channel networks in a digital elevation model of the prairie region through hydrological correction and geomorphological assessment. Canadian Water Resources Journal 38 (1) , pp. 12-23

Zhang, H., Ma, Z., Liu, Y., He, X., Ma, Y. 2013. A new skeleton feature extraction method for terrain model using profile recognition and morphological simplification. Mathematical Problems in Engineering 2013 , art. no. 523729 

 

2012


Baartman, J.E.M., Van Gorp, W., Temme, A.J.A.M., Schoorl, J.M. 2012Modelling sediment dynamics due to hillslope-river interactions: Incorporating fluvial behaviour in landscape evolution model LAPSUS. Earth Surface Processes and Landforms 37 (9) , pp. 923-935

Charrier, R., Li, Y.  2012 Assessing resolution and source effects of digital elevation models on automated floodplain delineation: A case study from the Camp Creek Watershed, Missouri. Applied Geography 34 , pp. 38-46. 

Chen, Y., Wilson, J.P., Zhu, Q., Zhou, Q. Comparison of drainage-constrained methods for DEM generalization, 2012. Computers and Geosciences 48 , pp. 41-49

Choi, Y. 2012. A new algorithm to calculate weighted flow-accumulation from a DEM by considering surface and underground stormwater infrastructure Environmental Modelling and Software 30 , pp. 81-91

Coulthard, T.J., Hancock, G.R., Lowry, J.B.C. 2012. Modelling soil erosion with a downscaled landscape evolution model Earth Surface Processes and Landforms,  37 (10) , pp. 1046-1055.

Degiorgis, M., Gnecco, G., Gorni, S., Roth, G., Sanguineti, M., Taramasso, A.C. 2012. Classifiers for the detection of flood-prone areas using remote sensed elevation data. Journal of Hydrology 470-471 , pp. 302-315

Fatichi, S., Ivanov, V.Y., Caporali, E. 2012. A mechanistic ecohydrological model to investigate complex interactions in cold and warm water-controlled environments: 1. Theoretical framework and plot-scale analysis. Journal of Advances in Modeling Earth Systems 4 (5) , art. no. M05002

Fatichi, S., Ivanov, V.Y., Caporali, E. 2012. A mechanistic ecohydrological model to investigate complex interactions in cold and warm water-controlled environments: 2. Spatiotemporal analyses. Journal of Advances in Modeling Earth Systems 4 (5) , art. no. M05003

Gokceoglu, C. 2012. Discussion on "Combining landslide susceptibility maps obtained from frequency ratio, logistic regression, and artificial neural network models using ASTER images and GIS" by Choi et al. (2012), Engineering Geology, 124, 12-23. Engineering Geology 129-130 , pp. 104-105

Grimaldi, S., Petroselli, A., Serinaldi, F. 2012. Design hydrograph estimation in small and ungauged watersheds: Continuous simulation method versus event-based approach. Hydrological Processes 26 (20) , pp. 3124-3134

Grimaldi, S., Petroselli, A., Serinaldi, F. 2012. A continuous simulation model for design hydrograph estimation in ungauged watersheds, Hydrological Sciences Journal 57 (6) , pp. 1035-1051.

Grimaldi, S., Petroselli, A., Tauro, F., Porfiri, M. 2012. Time of concentration: a paradox in modern hydrology. Hydrological Sciences Journal 57 (2) , pp. 217-228

Grimaldi, S., Petroselli, A., Nardi, F. 2012. A parsimonious geomorphological unit hydrograph for rainfall-runoff modelling in small ungauged basins Hydrological Sciences Journal 57 (1) , pp. 73-83

Hasan, A., Pilesjö, P., Persson, A. 2012. On generating digital elevation models from liDAR data - resolution versus accuracy and topographic wetness index indices in northern peatlands. Geodesy and Cartography 38 (2) , pp. 57-69

Heras, M.M., Saco, P.M., Willgoose, G.R. 2012. A comparison of SRTM V4 and ASTER GDEM for Hydrological applications in low relief terrain. Photogrammetric Engineering and Remote Sensing 78 (7) , pp. 757-766

Irfan Ashraf, M., Zhao, Z., Bourque, C.P.-A., Meng, F.-R. 2012. GIS-evaluation of two slope-calculation methods regarding their suitability in slope analysis using high-precision LiDAR digital elevation models. Hydrological Processes 26 (8) , pp. 1119-1133

Iwahashi, J., Kamiya, I., Yamagishi, H. 2012. High-resolution DEMs in the study of rainfall- and earthquake-induced landslides: Use of a variable window size method in digital terrain analysis. Geomorphology 153-154 , pp. 29-38

Jia, N., Mitani, Y., Xie, M., Djamaluddin, I. 2012. Shallow landslide hazard assessment using a three-dimensional deterministic model in a mountainous area. Computers and Geotechnics 45 , pp. 1-10

Lai, L., Zhang, Y. 2012. Study on the utilization of digital elevation model for calculation method of reservoir capacity Advanced Materials Research 472-475 , pp. 1627-1631

Lang, M., McDonough, O., McCarty, G., Oesterling, R., Wilen, B. Enhanced detection of wetland-stream connectivity using lidar. Wetlands 32 (3) , pp. 461-473

Listo, F.D.L.R., Carvalho Vieira, B. 2012. Mapping of risk and susceptibility of shallow-landslide in the city of São Paulo, Brazil. Geomorphology 169-170 , pp. 30-44

Liu, J., Chen, X., Zhang, X., Hoagland, K.D. 2012. Grid digital elevation model based algorithms for determination of hillslope width functions through flow distance transforms Water Resources Research 48 (4) , art. no. W04532

Liu, J.G., Mason, P.J., Yu, E., Wu, M.-C., Tang, C., Huang, R., Liu, H. 2012. GIS modelling of earthquake damage zones using satellite remote sensing and DEM data. Geomorphology 139-140 , pp. 518-535

Matsuura, T., Aniya, M. 2012 Automated segmentation of hillslope profiles across ridges and valleys using a digital elevation model Geomorphology 177-178 , pp. 167-177

Mukherjee, P., Singh, C.K., Mukherjee, S. 2012. Delineation of Groundwater Potential Zones in Arid Region of India-A Remote Sensing and GIS Approach Water Resources Management 26 (9) , pp. 2643-2672

Nalbantis, I., Lymperopoulos, S. 2012. Assessment of flood frequency after forest fires in small ungauged basins based on uncertain measurements. Hydrological Sciences Journal 57 (1) , pp. 52-72

Nefeslioglu, H.A., San, B.T., Gokceoglu, C., Duman, T.Y. 2012. An assessment on the use of terra ASTER L3A data in landslide susceptibility mapping.  International Journal of Applied Earth Observation and Geoinformation 14 (1) , pp. 40-60

Orlandini, S., Moretti, G., Corticelli, M.A., Santangelo, P.E., Capra, A., Rivola, R., Albertson, J.D. 2012. Evaluation of flow direction methods against field observations of overland flow dispersion. Water Resources Research 48 (10) , art. no. W10523

Park, J.H., Hur, Y.T. 2012 Development and application of GIS based K-DRUM for flood runoff simulation using radar rainfall. Journal of Hydro-Environment Research 6 (3) , pp. 209-219

Persson, A., Hasan, A., Tang, J., Pilesjö, P. 2012. Modelling Flow Routing in Permafrost Landscapes with TWI: An Evaluation against Site-Specific Wetness Measurements. Transactions in GIS 16 (5) , pp. 701-713

Petroselli A., “LIDAR Data and Hydrological Applications at the Basin Scale”, GIScience & Remote Sensing, 2012, 49, No. 1, p. 139–162, DOI 10.2747/1548-1603.49.1.139

Petroselli A., Alvarez A., “The flat area issue in DEMs and its consequences on the rainfall-runoff modeling”, GIScience & Remote Sensing, 49 (5), pp. 711-734, 2012. doi:10.2747/1548-1603.49.5.711

Qin, C.-Z., Zhan, L. 2012. Parallelizing flow-accumulation calculations on graphics processing units-From iterative DEM preprocessing algorithm to recursive multiple-flow-direction algorithm Computers and Geosciences 43 , pp. 7-16

Romstad, B., Etzelmüller, B.  2011.  Mean-curvature watersheds: A simple method for segmentation of a digital elevation model into terrain units.  Geomorphology 139-140 , pp. 293-302

Rowberry, M.D. 2012. A comparison of three terrain parameters that may be used to identify denudation surfaces within a GIS: A case study from Wales, United Kingdom Computers and Geosciences 43 , pp. 147-158

Schiele, S., Möller, M., Blaar, H., Thürkow, D., Müller-Hannemann, M. 2012. Parallelization strategies to deal with non-localities in the calculation of regional land-surface parameters. Computers and Geosciences 44 , pp. 1-9

Schwanghart, W., Heckmann, T. 2012. Fuzzy delineation of drainage basins through probabilistic interpretation of diverging flow algorithms. Environmental Modelling and Software 33 , pp. 106-113

Schwendel, A.C., Fuller, I.C., Death, R.G. 2012. Assessing DEM interpolation methods for effective representation of upland stream morphology for rapid appraisal of bed stability River Research and Applications 28 (5) , pp. 567-584

Shi, X., Girod, L., Long, R., DeKett, R., Philippe, J., Burke, T. 2011. A comparison of LiDAR-based DEMs and USGS-sourced DEMs in terrain analysis for knowledge-based digital soil mapping. Geoderma 170 (1) , pp. 217-226

Song, X., Tang, G., Jiang, L., Zhang, G., Qian, K. A novel parallel depression removing algorithm for hydrology analysis in digital elevation models. 2012. Proceedings - 2012 20th International Conference on Geoinformatics, Geoinformatics 2012 , art. no. 6270268

Stefanescu, E.R., Bursik, M., Patra, A.K. 2012 Effect of digital elevation model on Mohr-Coulomb geophysical flow model output. Natural Hazards 62 (2) , pp. 635-656

Suprit, K., Shankar, D., Venugopal, V., Bhatkar, N.V. 2012. Simulating the daily discharge of the Mandovi river, west coast of India | [Simulation du débit journalier du fleuve mandovi, côte occidentale de l'inde] Hydrological Sciences Journal 57 (4) , pp. 686-704

Suwandana, E., Kawamura, K., Sakuno, Y., Kustiyanto, E., Raharjo, B. 2012. Evaluation of aster GDEM2 in comparison with GDEM1, SRTM DEM and topographic-map-derived DEM using inundation area analysis and RTK-DGPS data. Remote Sensing 4 (8) , pp. 2419-2431

Vidyapriya, V., Ramalingam, M., Srinivasa Raju, K., Iyyappan, M. Airborne laser scanner data for floodplain mapping for adyar watershed. 2012. European Journal of Scientific Research 82 (2) , pp. 213-226

Wilson, J.P.  2012 Digital terrain modeling  Geomorphology 137 (1), pp. 107-121 

Xie, J. Implementation and performance optimization of a parallel contour line generation algorithm, 2012, Computers and Geosciences 49 , pp. 21-28

Yong, B., Ren, L.-L., Hong, Y., Gourley, J.J., Chen, X., Zhang, Y.-J., Yang, X.-L., (...), Wang, W.-G. 2012A novel multiple flow direction algorithm for computing the topographic wetness index. Hydrology Research 43 (1-2) , pp. 135-145

 


 

2011


Alber, A., Piégay, H.  2011. Spatial disaggregation and aggregation procedures for characterizing fluvial features at the network-scale: Application to the Rhône basin (France). Geomorphology 125 (3), pp. 343-360 

Bek, S., Ježek, J.  2011 Optimization of interpolation parameters when deriving DEM from contour lines. Stochastic Environmental Research and Risk Assessment 25 (8), pp. 1049-1055 

Belmont, P.  2011. Floodplain width adjustments in response to rapid base level fall and knickpoint migration. Geomorphology 128 (1-2), pp. 92-101 

Choi, Y., Yi, H., Park, H.-D.  (2011) A new algorithm for grid-based hydrologic analysis by incorporating stormwater infrastructure. Computers and Geosciences 37 (8), pp. 1035-1044

Coveney, S., Fotheringham, A.S.  2011 The impact of DEM data source on prediction of flooding and erosion risk due to sea-level rise.  International Journal of Geographical Information Science 25 (7), pp. 1191-1211 

Cyr, J.-F., Landry, M., Gagnon, Y.  2011. Methodology for the large-scale assessment of small hydroelectric potential: Application to the Province of New Brunswick (Canada). Renewable Energy 36 (11), pp. 2940-2950 

Daniels, M.H., Maxwell, R.M., Chow, F.K.  2011 Algorithm for flow direction enforcement using subgrid-scale stream location data.  Journal of Hydrologic Engineering 16 (8), pp. 677-683

Di Lazzaro, M., Volpi, E.  2011 Effects of hillslope dynamics and network geometry on the scaling properties of the hydrologic response Advances in Water Resources 34 (11), pp. 1496-1507

Drouin, A., Saint-Laurent, D., Lavoie, L., Ouellet, C. 2011. High-Precision Elevation Model to Evaluate the Spatial Distribution of Soil Organic Carbon in Active Floodplains. Wetlands , pp. 1-14

El Baroudy, A.A.  2011 Catena Monitoring land degradation using remote sensing and gis techniques in an area of the middle Nile Delta, Egypt 

Grohmann, C.H., Riccomini, C., Chamani, M.A.C.  2011. Regional scale analysis of landform configuration with base-level (isobase) maps. Hydrology and Earth System Sciences 15 (5), pp. 1493-1504 

Gonga-Saholiariliva, N., Gunnell, Y., Petit, C., Mering, C. 2011. Techniques for quantifying the accuracy of gridded elevation models and for mapping uncertainty in digital terrain analysis. Progress in Physical Geography 35 (6) , pp. 739-764

Hani, A.F.M., Sathyamoorthy, D., Sagayan Asirvadam, V. (2011). A method for computation of surface roughness of digital elevation model terrains via multiscale analysis. Computers and Geosciences 37 (2), pp. 177-192

Harris, A.J.L., Favalli, M., Wright, R., Garbeil, H.  2011 Hazard assessment at Mount Etna using a hybrid lava flow inundation model and satellite-based land classification.  Natural Hazards 58 (3), pp. 1001-1027 

Hou, K., Sun, J., Yang, W., Sun, T., Wang, Y., Ma, S.  2011 Automatic extraction of drainage networks from DEMs base on heuristic search.  Journal of Software 6 (8), pp. 1611-1618

Hou, K., Yang, W., Sun, J., Sun, T. 2011. A method for extracting drainage networks with heuristic information from digital elevation models. Water Science and Technology 64 (11) , pp. 2316-2324.

Jung, I.-K., Park, J.-Y., Park, G.-A., Lee, M.-S., Kim, S.-J.  2011 A grid-based rainfall-runoff model for flood simulation including paddy fields. Paddy and Water Environment 9 (3), pp. 275-290 

Lai, T., Dragićević, S.  2011 Development of an urban landslide cellular automata model: A case study of North Vancouver, Canada  Earth Science Informatics 4 (2), pp. 69-80 

Lawal, D.U., Matori, A.-N., Hashim, A.M., Chandio, I.A., Sabri, S., Balogun, A.-L., Abba, H.A.  2011. Geographic information system and remote sensing applications in flood hazards management: A review  Research Journal of Applied Sciences, Engineering and Technology 3 (9), pp. 933-947 

Li, S., MacMillan, R.A., Lobb, D.A., McConkey, B.G., Moulin, A., Fraser, W.R.  2011 Lidar DEM error analyses and topographic depression identification in a hummocky landscape in the prairie region of Canada, 2011 Geomorphology 129 (3-4), pp. 263-275

Liao, Z., Hong, Y., Kirschbaum, D., Adler, R.F., Gourley, J.J., Wooten, R., Evaluation of TRIGRS (transient rainfall infiltration and grid-based regional slope-stability analysis)'s predictive skill for hurricane-triggered landslides: A case study in Macon County, North Carolina. 2011 Natural Hazards 58 (1), pp. 325-339

Liu, H., Kiesel, J., Hörmann, G., Fohrer, N.  2011 Effects of DEM horizontal resolution and methods on calculating the slope length factor in gently rolling landscapes  Catena 87 (3), pp. 368-375

Liu, X., Zhang, Z.  2011. Drainage network extraction using LiDAR-derived DEM in volcanic plains Area 43 (1), pp. 42-52.

Manfreda, S., M. Di Leo, A. Sole, 2011. Detection of Flood Prone Areas using Digital Elevation Models, Journal of Hydrologic Engineering, (10.1061/(ASCE)HE.1943-5584.0000367).

Mantelli, L.R., Barbosa, J.M., Bitencourt, M.D.  2011 Assessing ecological risk through automated drainage extraction and watershed delineation Ecological Informatics 6 (5), pp. 325-331

Metz, M., Mitasova, H., Harmon, R.S.  2011. Efficient extraction of drainage networks from massive, radar-based elevation models with least cost path search, Hydrology and Earth System Sciences 15 (2), pp. 667-678. 

Murphy, P.N.C., Ogilvie, J., Meng, F.-R., White, B., Bhatti, J.S., Arp, P.A.  2011 Modelling and mapping topographic variations in forest soils at high resolution: A case study  Ecological Modelling 222 (14), pp. 2314-2332 

Nobre, A.D., Cuartas, L.A., Hodnett, M., Rennó, C.D., Rodrigues, G., Silveira, A., Waterloo, M., Saleska, S.  2011. Height Above the Nearest Drainage - a hydrologically relevant new terrain model.  Journal of Hydrology 404 (1-2), pp. 13-29. 

Orlandini, S., Tarolli, P., Moretti, G., Dalla Fontana, G. (2011). On the prediction of channel heads in a complex alpine terrain using gridded elevation data, Water Resources Research, 47, W02538, ISSN: 0043-1397, doi:10.1029/2010WR009648. 

Park, S., Oh, C., Jeon, S., Jung, H., Choi, C.  2011. Soil erosion risk in Korean watersheds, assessed using the revised universal soil loss equation, Journal of Hydrology 399 (3-4), pp. 263-273.

Poggio, L., Soille, P.  2011 A probabilistic approach to river network detection in digital elevation models Catena 87 (3), pp. 341-350

Qin, C.-Z., Zhu, A.-X., Pei, T., Li, B.-L., Scholten, T., Behrens, T., Zhou, C.-H.  2011. An approach to computing topographic wetness index based on maximum downslope gradient. Precision Agriculture 12 (1), pp. 32-43 

Rosatto, H.G., Tolon-Becerra, A., Botta, G., Presutti, M.E.  2011. Runoff estimation in small rural watersheds using DEMS in North West of Argentina, Soil and Tillage Research 112 (1), pp. 8-17 

Schröder, D. 2011 Evaluating open source tools for hydrological analysis. GEO: connexion 10 (8) , pp. 34-37

Sarkar, S., Rai, R.K. 2011. Flood Inundation Modeling Using Nakagami-m Distribution Based GIUH for a Partially Gauged Catchment. Water Resources Management 25 (14) , pp. 3805-3835

Shahapure, S.S., Eldho, T.I., Rao, E.P. 2011. Flood Simulation in an Urban Catchment of Navi Mumbai City with Detention Pond and Tidal Effects Using FEM, GIS, and Remote Sensing. Journal of Waterway, Port, Coastal and Ocean Engineering 137 (6) , pp. 286-299

Shahzad F., Gloaguen R., 2011. TecDEM: A MATLAB based toolbox for tectonic geomorphology, Part 1: Drainage network preprocessing and stream profile analysis, Computers & Geosciences, Volume 37, Issue 2, February 2011, Pages 250-260

Sofia, G., Tarolli, P., Cazorzi, F., Dalla Fontana, G. (2011). An objective approach for feature extraction: distribution analysis and statistical descriptors for scale choice and channel network identification, Hydrol. Earth Syst. Sci., 15, 1387–1402, ISSN: 1027-5606, doi:10.5194/hess-15-1387-2011. 

Sougnez, N., Vanacker, V.  2011 The topographic signature of Quaternary tectonic uplift in the Ardennes massif (Western Europe) Hydrology and Earth System Sciences 15 (4), pp. 1095-1107 

Sulis, M., Paniconi, C., Camporese, M. Impact of grid resolution on the integrated and distributed response of a coupled surface-subsurface hydrological model for the des Anglais catchment, Quebec. 2011 Hydrological Processes 25 (12), pp. 1853-1865

Tesfa, T.K., Tarboton, D.G., Watson, D.W., Schreuders, K.A.T., Baker, M.E., Wallace, R.M. 2011. Extraction of hydrological proximity measures from DEMs using parallel processing. Environmental Modelling and Software 26 (12) , pp. 1696-1709

Tarolli, P., Borga, M., Chang, K.T., Chiang, S.H. (2011). Modeling shallow landsliding susceptibility by incorporating heavy rainfall statistical properties, Geomorphology, 133, 199-211, ISSN: 0169-555X, doi:10.1016/j.geomorph.2011.02.033. 

Van Kreveld, M., Silveira, R.I. Embedding rivers in triangulated irregular networks with linear programming. 2011 International Journal of Geographical Information Science 25 (4), pp. 615-631 

Yang, X., Tang, G., Xiao, C., Gao, Y., Zhu, S.  2011 The scaling method of specific catchment area from DEMs.  Journal of Geographical Sciences 21 (4), pp. 689-704 

Yang, T., Xu, C.-y., Zhang, Q., Yu, Z., Baron, A., Wang, X., Singh, V.P.  2011 DEM-based numerical modelling of runoff and soil erosion processes in the hilly-gully loess regions.  Stochastic Environmental Research and Risk Assessment , pp. 1-17

Youssef, A.M., Pradhan, B., Hassan, A.M.  2011.  Flash flood risk estimation along the St. Katherine road, southern Sinai, Egypt using GIS based morphometry and satellite imagery, Environmental Earth Sciences 62 (3), pp. 611-623

Zeilhofer, P., Schwenk, L.M., Onga, N.  A GIS-approach for determining permanent riparian protection areas in Mato Grosso, central Brazil. 2011 Applied Geography 31 (3), pp. 990-997 

Zhou, Q., Pilesjö, P., Chen, Y.  2011 Estimating surface flow paths on a digital elevation model using a triangular facet network.  Water Resources Research 47 (7), art. no. W07522

Zuo, J.-J., Cai, Y.-L.  2011 An automated watershed delineations approach for plain river network regions: A case study in Shanghai  Shuikexue Jinzhan/Advances in Water Science 22 (3), pp. 337-343  
   

 

2010


Amini, J. , A method for generating floodplain maps using ikonos images and dems, 2010 International Journal of Remote Sensing 31 (10), pp. 2441-2456    

Arnold, N.,  A new approach for dealing with depressions in digital elevation models when calculating flow accumulation values, 2010 Progress in Physical Geography 34 (6), pp. 781-809   

Birkinshaw, S. J.: Technical Note: Automatic river network generation for a physically-based river catchment model, Hydrol. Earth Syst. Sci., 14, 1767-1771, doi:10.5194/hess-14-1767-2010, 2010.

Chen, J., Lin, G., Yang, Z., Chen, H.  (2010) The relationship between DEM resolution, accumulation area threshold and drainage network indices. 18th International Conference on Geoinformatics, Geoinformatics 2010 , art. no. 5567513   

Drouin, A., Saint-Laurent, D., Comparison of interpolation methods to produce high precision digital elevation models (DEM) for the representation of floodplain micro-topography, Hydrological Sciences Journal 55 (4), pp. 526-539 

Gironás, J., Niemann, J.D., Roesner, L.A., Rodriguez, F., Andrieu, H. (2010) Evaluation of methods for representing Urban Terrain in storm-water modelling. Journal of Hydrologic Engineering 15 (1), pp. 1-14   

Grimaldi, S., Petroselli, A., Alonso, G., Nardi, F.  (2010)  Flow time estimation with spatially variable hillslope velocity in ungauged basins. Advances in Water Resources 33 (10), pp. 1216-1223   

Kiesel, J., Fohrer, N., Schmalz, B. and White, M. J. (2010), Incorporating landscape depressions and tile drainages of a northern German lowland catchment into a semi-distributed model. Hydrological Processes, 24: 1472–1486. doi: 10.1002/hyp.7607 

Kopecký, M., Čížková, S.  (2010) Using topographic wetness index in vegetation ecology: Does the algorithm matter? Applied Vegetation Science 13 (4), pp. 450-459   

Li, J., Wong, D.W.S. (2010) Effects of DEM sources on hydrologic applications.  Computers, Environment and Urban Systems 34 (3), pp. 251-261   

Neil A.,  A new approach for dealing with depressions in digital elevation models when calculating flow accumulation values. Progress in Physical Geography. December 2010, 34: 781-809, doi:10.1177/0309133310384542

Passalacqua, P., Tarolli, P., Foufoula-Georgiou, E. (2010). Testing space-scale methodologies for automatic geomorphic feature extraction from LiDAR in a complex mountainous landscape, Water Resources Research, 46, W11535, ISSN: 0043-1397, doi:10.1029/2009WR008812. 

Pelletier J. Minimizing the grid-resolution dependence of flow-routing algorithms for geomorphic applications. Geomorphology, 122(1-2):91‚ 2010.

Pirotti, F., Tarolli, P. (2010). Suitability of LiDAR point density and derived landform curvature maps for channel network extraction, Hydrological Processes, 24, 1187-1197, ISSN: 08856087, doi:10.1002/hyp.7582.

Rulli, M.C.  (2010) A physically based watershed partitioning method. 2010. Advances in Water Resources 33 (10), pp. 1206-1215

Tarolli, P., Sofia, G., Dalla Fontana, G. (2010). Geomorphic features extraction from high-resolution topography: landslide crowns and bank erosion, Natural Hazards, ISSN: 0921-030X, doi:10.1007/s11069-010-9695-2. 

Tinghua Ai, Jingzhong Li, A DEM generalization by minor valley branch detection and grid filling, ISPRS Journal of Photogrammetry and Remote Sensing, Volume 65, Issue 2, March 2010, Pages 198-207, ISSN 09242716, DOI: 10.1016/j.isprsjprs.2009.11.001.  

White, R.A., Dietterick, B.C., Mastin, T., Strohman, R. 2010. Forest roads mapped using LiDAR in steep forested terrain, Remote Sensing 2 (4) , pp. 1120-1141

Zandbergen, P.  2010 Accuracy considerations in the analysis of depressions in medium-resolution lidar DEMs  GIScience and Remote Sensing 47 (2), pp. 187-207 

     

 

2009


Di Lazzaro, M., “Regional analysis of storm hydrographs in the rescaled width function framework”, Journal of hydrology, 373 (2009), pp.352-265,  DOI information:10.1016/j.jhydrol.2009.04.027 

Dixon, B., Earls, J., Resample or not?! Effects of resolution of DEMs in watershed modelling, 2009 Hydrological Processes 23 (12), pp. 1714-1724 

Getirana, A.C.V., Bonnet, M.-P., Rotunno Filho, O.C., Mansur, W.J.  2009. Improving hydrological information acquisition from DEM processig in floodplains.  Hydrological Processes 23 (3), pp. 502-514 

Gong, J., Xie, J., Extraction of drainage networks from large terrain datasets using high throughput computing, 2009, Computers and Geosciences 35 (2), pp. 337-346   

Leitão, J.P., Boonya-aroonnet, S., Prodanović, D., Maksimović, Č., The influence of digital elevation model resolution on overland flow networks for modelling urban pluvial flooding, 2009 Water Science and Technology 60 (12), pp. 3137-3149   

Richardson, M. C., M.-J. Fortin, and B. A. Branfireun (2009), Hydrogeomorphic edge detection and delineation of landscape functional units from lidar digital elevation models, Water Resour. Res., 45, W10441, doi:10.1029/2008WR007518. 

Santini, M., Grimaldi, S., Nardi, F., Petroselli, A., Rulli, M.C.,  Pre-processing algorithms and landslide modelling on remotely sensed DEMs, 2009, Geomorphology 113 (1-2), pp. 110-125 

Stevenson J.A., Sun X., Mitchell N.C., Despeckling SRTM and other topographic data with a denoising algorithm, Geomorphology, Volume 114, Issue 3, 15 January 2010, Pages 238-252, ISSN 0169-555X, DOI: 10.1016/j.geomorph.2009.07.006.

Tarolli, P., Arrowsmith, J.R., Vivoni, E.R. (2009). Understanding earth surface processes from remotely sensed digital terrain models, Geomorphology, 113, 1-3, ISSN: 0169-555X, doi:10.1016/j.geomorph.2009.07.005. Special Issue Preface.

Tarolli, P., Dalla Fontana, G. (2009). Hillslope-to-valley transition morphology: new opportunities from high resolution DTMs, Geomorphology, 113, 47-56, ISSN: 0169-555X, doi:10.1016/j.geomorph.2009.02.006.

Vianello, A., Cavalli, M., Tarolli, P. (2009). LiDAR-derived slopes for headwater channel network analysis, Catena, 76, 97-106, ISSN: 03418162, doi:10.1016/j.catena.2008.09.012.

Wang, Y., Peng, H., Cui, P., Zhang, W., Qiao, F., Chen, C.  2009. A new treatment of depression for drainage network extraction based on DEM. Journal of Mountain Science 6 (4), pp. 311-319 

Wu Y., Liu Y., Hu H., Yang C., Flow paths tracing from raster contours using distance transform, Proc. SPIE 7492, 749255 (2009); doi:10.1117/12.838588   

Yamazaki, D., Oki, T., and Kanae, S.: Deriving a global river network map and its sub-grid topographic characteristics from a fine-resolution flow direction map, Hydrol. Earth Syst. Sci., 13, 2241-2251, doi:10.5194/hess-13-2241-2009

Zhang, H. and Huang, G. (2009), Building channel networks for flat regions in digital elevation models. Hydrological Processes, 23: 2879–2887. doi: 10.1002/hyp.7378 

 

2008 


Cavalli, M., Tarolli, P., Marchi, L., Dalla Fontana, G. (2008). The effectiveness of airborne LiDAR data in the recognition of channel bed morphology, Catena, 73, 249-260, ISSN: 03418162, doi:10.1016/j.catena. 2007.11.001.

Di Lazzaro, M., “Correlation between hillslope and channel lengths and its effects on the hydrologic response”, Journal of hydrology 362 (2008), pp. 260-273 DOI information: 10.1016/j.jhydrol.2008.08.022

Jingwen, X., Wanchang, Z., Chuansheng, L.  A novel method for filling the depressions in massive DEM data.  2008 International Geoscience and Remote Sensing Symposium (IGARSS) , art. no. 4423746, pp. 4080-4083   

Kenny, F., Matthews, B., Todd, K.  2008. Routing overland flow through sinks and flats in interpolated raster terrain surfaces. Computers and Geosciences 34 (11), pp. 1417-1430 

Klingseisen, B., Metternicht, G., Paulus, G., Geomorphometric landscape analysis using a semi-automated GIS-approach 2008 Environmental Modelling and Software 23 (1), pp. 109-121   

Lindsay, J. B. and Evans, M. G. (2008), The influence of elevation error on the morphometrics of channel networks extracted from DEMs and the implications for hydrological modelling. Hydrological Processes, 22: 1588–1603. doi: 10.1002/hyp.6728

Martin Y., Valeo C., Tait M., Centimetre-scale digital representations of terrain and impacts on depression storage and runoff, CATENA, Volume 75, Issue 2, 15 October 2008, Pages 223-233, ISSN 03418162, DOI: 10.1016/j.catena.2008.07.005.

Nardi F., Grimaldi S., Santini M., Petroselli A., Ubertini L., Hydrogeomorphic properties of simulated drainage patterns using digital elevation models: the flat area issue, Hydrological Science Journal, 53 (6), pp. 1176-1193, 2008.   

Schauble H., Marinoni O., Hinderer M., A GIS-based method to calculate flow accumulation by considering dams and their specific operation time, Computers & Geosciences, Volume 34, Issue 6, June 2008, Pages 635-646, ISSN 0098-3004, DOI: 10.1016/j.cageo.2007.05.023. 

Tarolli, P., Borga, M., Dalla Fontana, G. (2008). Analyzing the influence of upslope bedrock outcrops on shallow landsliding, Geomorphology, 93, 186-200, ISSN: 0169-555X,  doi:10.1016/j.geomorph. 2007.02.017.

 

2007


Bänninger, D.: Technical Note: Water flow routing on irregular meshes, Hydrol. Earth Syst. Sci., 11, 1243-1247, doi:10.5194/hess-11-1243-2007, 2007

Colombo R., V. Vogt J., Soille P., Paracchini M.L., de Jager A., Deriving river networks and catchments at the European scale from medium resolution digital elevation data, CATENA, Volume 70, Issue 3, 1 August 2007, Pages 296-305, ISSN 03418162, DOI: 10.1016/j.catena.2006.10.001.

Grimaldi S., Nardi F., Di Benedetto F., Istanbullouglu E., Bras R.L., A physically-based method for removing pits in digital elevation models,  Advances in Water Resources, 30 (10), pp. 2151-2158, 2007.

Mathis, J.E. Specific catchment area as a basis of design for precision riparian buffers. Proceedings of the 2007 Georgia Water Resources Conference, held March 27-29, 2007, at the University of Georgia.

Seibert, J. & McGlynn, B. L. (2007) A new triangular multiple flow direction algorithm for computing upslope areas fromgridded digital elevation models. Water Resour. Res. 43, W04501. doi:10.1029/2006WR005128. 

Wilson, J.P., Lam, C.S., Deng, Y.  Comparison of the performance of flow-routing algorithms used in GIS-based hydrologic analysis, 2007 Hydrological Processes 21 (8), pp. 1026-1044. 

 

2006 


Dodov, B.A., Foufoula-Georgiou.  Floodplain morphometry extraction from a high-resolution digital elevation model: A simple algorithm for regional analysis studies. 2006 IEEE Geoscience and Remote Sensing Letters 3 (3), art. no. 1658016, pp. 410-413   

Erskine, R.H., Green, T.R., Ramirez, J.A., MacDonald, R.H., 2006. Comparison of gridbased algorithms for computing upslope contributing area. Water Resources Research 42 (W09416). doi:10.1029/2005WR004648. 

Gorokhovich, Y., Voustianiouk, A., 2006. Accuracy assessment of the processed SRTM-based elevation data by CGIAR using field data from USA and Thailand and its relation to the terrain characteristics. Remote Sensing of Environment, 104, 409-415.

Hancock, G. R. and Evans, K. G. (2006), Channel head location and characteristics using digital elevation models. Earth Surface Processes and Landforms, 31: 809–824. doi: 10.1002/esp.1285

Lindsay, J.B., Creed, I.F., Distinguishing actual and artefact depressions in digital elevation data, 2006 Computers and Geosciences 32 (8), pp. 1192-1204   

Nardi, F., Vivoni, E. R. & Grimaldi, S. (2006) Investigating a floodplain scaling relation using a hydrogeomorphic delineation method. Water Resour. Res. 42, W09409. doi:10.1029/2005WR004155. 

Rosso, R., Rulli, M.C., Vannucchi, G., 2006. A physically based model for the hydrologic control on shallow landsliding. Water Resources Research 42 (W06410). doi:10.1029/2005WR004369.  

Tarolli, P., and Tarboton, D.G., (2006). A New Method for Determination of Most Likely Landslide Initiation Points and the Evaluation of Digital Terrain Model Scale in Terrain Stability Mapping, Hydrol. Earth Syst. Sci., 10, 663-677, ISSN: 1027-5606, doi:10.5194/hess-10-663-2006.  

Zhu Q., Tian Y., and Zhao J.. 2006. An efficient depression processing algorithm for hydrologic analysis. Comput. Geosci. 32, 5 (June 2006), 615-623. 

 

2005


Grimaldi S., Teles V., Bras R.L., Preserving First And Second Moments of The Slope Area Relationship During The Interpolation Of Digital Elevation Models, Advances in Water Resources, 28 (6), pp. 583-588, 2005 

Kenny F., Matthews B., A methodology for aligning raster flow direction data with photogrammetrically mapped hydrology, Computers & Geosciences, Volume 31, Issue 6, July 2005, Pages 768-779, ISSN 0098-3004, DOI: 10.1016/j.cageo.2005.01.019.

Lindsay, J.B., Creed, I.F., Removal of artifact depressions from digital elevation models: Towards a minimum impact approach. 2005 Hydrological Processes 19 (16), pp. 3113-3126 

Shaw, D. A., Martz, L. W. and Pietroniro, A. (2005), A methodology for preserving channel flow networks and connectivity patterns in large-scale distributed hydrological models. Hydrological Processes, 19: 149–168. doi: 10.1002/hyp.5765. 

 

2004 


Kim, S. and Lee, H. (2004), A digital elevation analysis: a spatially distributed flow apportioning algorithm. Hydrological Processes, 18: 1777–1794. doi: 10.1002/hyp.1446  

Grimaldi S., Teles V., Bras R.L., Sensitivity of a physically-based method of terrain interpolation to variance of input data and to the constraint of an enforced surface drainage direction, Earth Surface Processes and Landform, 29 (5), pp. 587-597, 2004.  

Pan, F., Peters-Lidard, C. D., Sale, M. J. & King, A. K. (2004) A comparison of geographical information systems–based algorithms for computing the TOPMODEL topographic index. Water Resour. Res. 40, W06303.doi:10.1029/2004WR003069. 

Soille, P. (2004), Optimal removal of spurious pits in grid digital elevation models, Water Resour. Res., 40, W12509, doi:10.1029/2004WR003060

Warren, S. D., Hohmann, M. G., Auerswald, K. & Mitasova, H. (2004) An evaluation of methods to determine slope using digital elevation data. Catena 58, 215–33.  

 

1998 


 Bren, L.J. 1998. The geometry of a constant buffer-loading design method for humid watersheds. Forest Ecology and Management 110 (1998) 113-125. 

 

news and events

Login Form

Registration is only for GISTAR administrators and editors. Registration for external users is coming soon.