{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:34:26Z","timestamp":1760243666320,"version":"build-2065373602"},"reference-count":53,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2013,12,4]],"date-time":"2013-12-04T00:00:00Z","timestamp":1386115200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>This paper introduces and evaluates DryMOD, a dynamic water balance model of the key hydrological process in drylands that is based on free, public-domain datasets. The rainfall model of DryMOD makes optimal use of spatially disaggregated Tropical Rainfall Measuring Mission (TRMM) datasets to simulate hourly rainfall intensities at a spatial resolution of 1-km. Regional-scale applications of the model in seasonal catchments in Tunisia and Senegal characterize runoff and soil moisture distribution and dynamics in response to varying rainfall data inputs and soil properties. The results highlight the need for hourly-based rainfall simulation and for correcting TRMM 3B42 rainfall intensities for the fractional cover of rainfall (FCR). Without FCR correction and disaggregation to 1 km, TRMM 3B42 based rainfall intensities are too low to generate surface runoff and to induce substantial changes to soil moisture storage. The outcomes from the sensitivity analysis show that topsoil porosity is the most important soil property for simulation of runoff and soil moisture. Thus, we demonstrate the benefit of hydrological investigations at a scale, for which reliable information on soil profile characteristics exists and which is sufficiently fine to account for the heterogeneities of these. Where such information is available, application of DryMOD can assist in the spatial and temporal planning of water harvesting according to runoff-generating areas and the runoff ratio, as well as in the optimization of agricultural activities based on realistic representation of soil moisture conditions.<\/jats:p>","DOI":"10.3390\/rs5126691","type":"journal-article","created":{"date-parts":[[2013,12,4]],"date-time":"2013-12-04T12:02:38Z","timestamp":1386158558000},"page":"6691-6716","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Dynamic Hydrological Modeling in Drylands with TRMM Based Rainfall"],"prefix":"10.3390","volume":"5","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3403-0411","authenticated-orcid":false,"given":"Elena","family":"Tarnavsky","sequence":"first","affiliation":[{"name":"Meteorology Department, University of Reading, Earley Gate, POBox 243, Reading RG6 6BB, UK"}]},{"given":"Mark","family":"Mulligan","sequence":"additional","affiliation":[{"name":"Geography Department, King's College London, The Strand, London WC2R 2LS, UK"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5845-760X","authenticated-orcid":false,"given":"Mohamed","family":"Ouessar","sequence":"additional","affiliation":[{"name":"Institut des R\u00e9gions Arides (IRA), M\u00e9denine 4119, Tunisia"}]},{"given":"Abdoulaye","family":"Faye","sequence":"additional","affiliation":[{"name":"Centre des Suivi Ecologique (CSE), Fann R\u00e9sidence, Dakar, B.P. 15532, Senegal"}]},{"given":"Emily","family":"Black","sequence":"additional","affiliation":[{"name":"Meteorology Department, University of Reading, Earley Gate, POBox 243, Reading RG6 6BB, UK"}]}],"member":"1968","published-online":{"date-parts":[[2013,12,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1077","DOI":"10.1623\/hysj.52.6.1077","article-title":"Dryland hydrology in Mediterranean regions\u2014A review","volume":"52","author":"Cudennec","year":"2007","journal-title":"Hydrol. Sci. J"},{"key":"ref_2","first-page":"173","article-title":"EFEDA: European field experiment in a desertification threatened area","volume":"11","author":"Bolle","year":"1993","journal-title":"Ann. Geophys"},{"key":"ref_3","unstructured":"Helld\u00e9n, U. (2005, January 16\u201318). Case Studies of Desertification Monitoring: A Discussion of EU Initiatives. Beijing, China."},{"key":"ref_4","unstructured":"Reynolds, J.F., and Stafford Smith, D.M. (2002). Global Desertification: Do Humans Cause Deserts, Dahlem University Press."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"1651","DOI":"10.3390\/rs5041651","article-title":"Water balance modeling in a semi-arid environment with limited in situ data using remote sensing in Lake Manyara, East African Rift, Tanzania","volume":"5","author":"Deus","year":"2013","journal-title":"Remote Sens"},{"key":"ref_6","unstructured":"DeSurvey-IP Available online: http:\/\/www.noveltis.com\/desurvey."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"248","DOI":"10.1080\/02626667.2011.637498","article-title":"Spatial disaggregation and intensity correction of TRMM-based rainfall time series for hydrological applications in dryland catchments","volume":"57","author":"Tarnavsky","year":"2012","journal-title":"Hydrol. Sci. J"},{"key":"ref_8","unstructured":"Kalma, J.D., and Sivapalan, M. (1995). Scale Issues in Hydrological Modelling, Wiley."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"593","DOI":"10.1029\/93WR03218","article-title":"Comparison of simple versus complex distributed runoff models on a midsized semiarid watershed","volume":"30","author":"Michaud","year":"1994","journal-title":"Water Resour. Res"},{"key":"ref_10","unstructured":"Wheater, H., and Al-Weshah, R.A. (2002). Hydrology of Wadi Systems: IHP Regional Network on Wadi Hydrology in the Arab Region, UNESCO International Hydrological Programme."},{"key":"ref_11","unstructured":"Wheater, H., and Al-Weshah, R.A. (2002). Hydrology of Wadi Systems: IHP Regional Network on Wadi Hydrology in the Arab Region, UNESCO International Hydrological Programme."},{"key":"ref_12","unstructured":"Hodgson, S., Rumor, M., and Harts, J.J. (1997). Third Joint European Conference Exhibition on Geographical Information, IOS Press."},{"key":"ref_13","unstructured":"Mulligan, M. Global Gridded 1 km TRMM Rainfall Climatology and Derivatives. Version 1.0. Available online: http:\/\/geodata.policysupport.org\/2b31climatology."},{"key":"ref_14","unstructured":"Mulligan, M. Three-Hourly Rainfall Time Series (from TRMM 3B42). Available online: http:\/\/geodata.policysupport.org\/rainfall-timeseries."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"331","DOI":"10.1080\/02626669809492130","article-title":"A practical approach to rainfall-runoff modelling in arid zone drainage basins","volume":"43","author":"Sharma","year":"1998","journal-title":"Hydrol. Sci. J"},{"key":"ref_16","unstructured":"CGIAR-CSI CGIAR-CSI SRTM 90m DEM Digital Elevation Database, Version 3.0. Available online: http:\/\/srtm.csi.cgiar.org."},{"key":"ref_17","unstructured":"Henia, L. (2008). Atlas de L\u2019Eau en Tunisie, Universit\u00e9 de Tunis."},{"key":"ref_18","unstructured":"Ouessar, M. (2003). International Workshop on \u201cCombating Desertification: Sustainable Management of Marginal Drylands (SUMAMAD)\u201d, UNU-UNSCO-ICARDA and Institut des R\u00e9gions Arides (IRA)."},{"key":"ref_19","unstructured":"Yahmed, D.B. (2007). Atlas du S\u00e9n\u00e9gal, Les \u00c9ditions J.A."},{"key":"ref_20","unstructured":"Yahmed, D.B. (2007). Atlas du S\u00e9n\u00e9gal, Les \u00c9ditions J.A."},{"key":"ref_21","unstructured":"NASA-GSFC TRMM Product Level 2B Combined (PR, TMI) Rainfall Profile: TRMM 2B31. Available online: http:\/\/disc.sci.gsfc.nasa.gov\/precipitation\/documentation\/TRMM_README\/TRMM_2B31_readme.shtml."},{"key":"ref_22","unstructured":"NASA-GSFC TRMM and Other Satellites Precipitation Product. Available online: http:\/\/disc.gsfc.nasa.gov\/precipitation\/documentation\/TRMM_README\/TRMM_3B42_readme.shtml."},{"key":"ref_23","unstructured":"FAO\/IIASA\/ISRIC\/ISS-CAS\/JRC (2008). Harmonized World Soil Database, IIASA."},{"key":"ref_24","unstructured":"Mulligan, M. (1996). Modelling the Hydrology of Vegetation Competition in a Degraded Semiarid Environment, King\u2019s College London."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"437","DOI":"10.1111\/j.1475-2743.2007.00092.x","article-title":"Building and testing conceptual and empirical models for predicting soil bulk density","volume":"23","author":"Tranter","year":"2007","journal-title":"Soil Use Manag"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1331","DOI":"10.1080\/014311600210209","article-title":"Global land cover classification at 1 km resolution using a decision tree classifier","volume":"21","author":"Hansen","year":"2000","journal-title":"Int. J. Remote Sens"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"525","DOI":"10.1175\/1525-7541(2001)002<0525:GVRDFL>2.0.CO;2","article-title":"Global vegetation root distribution for land modeling","volume":"2","author":"Zeng","year":"2001","journal-title":"J. Hydrometeorol"},{"key":"ref_28","unstructured":"Campbell, G.S. (1985). Soil Physics with BASIC: Transport Models for Soil-Plant Systems, Elsevier."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"55","DOI":"10.2307\/210739","article-title":"An approach toward a rational classication of climate","volume":"38","author":"Thornthwaite","year":"1948","journal-title":"Geogr. Rev"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1175\/1520-0493(1958)086<0123:AGTFDE>2.0.CO;2","article-title":"A graphical technique for determining evapotranspiration by the thornthwaite method","volume":"86","author":"Palmer","year":"1958","journal-title":"Mon. Wea. Rev"},{"key":"ref_31","unstructured":"Palmer, W.C. (1965). Meteorological Drought, US Weather Bureau."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"355","DOI":"10.2307\/214911","article-title":"A search for understanding potential evapotranspiration","volume":"76","author":"Mather","year":"1986","journal-title":"Geogr. Rev"},{"key":"ref_33","doi-asserted-by":"crossref","unstructured":"Iqbal, M. (1983). Sun-Earth Astronomical Relationships: An Introduction to Solar Radiation, Academic Press.","DOI":"10.1016\/B978-0-12-373750-2.50006-9"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"1965","DOI":"10.1002\/joc.1276","article-title":"Very high resolution interpolated climate surfaces for global land areas","volume":"25","author":"Hijmans","year":"2005","journal-title":"Int. J. Climatol"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"262","DOI":"10.1111\/j.1541-0064.1971.tb00042.x","article-title":"The heat and water balance of southern Ontario according to the budyko method","volume":"XV","author":"Packer","year":"1971","journal-title":"Can. Geogr."},{"key":"ref_36","unstructured":"Dyck, S. (1983). New Approaches in Water Balance Computation, International Association of Hydrological Sciences (IAHS)."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1023\/A:1007916816469","article-title":"A review on monthly water balance models for water resources investigations","volume":"12","author":"Xu","year":"1998","journal-title":"Water Resour. Manag"},{"key":"ref_38","doi-asserted-by":"crossref","unstructured":"Simmers, I. (2003). Understanding Water in a Dry Environment, A.A. Balkema Publishers.","DOI":"10.1201\/9780203971307"},{"key":"ref_39","doi-asserted-by":"crossref","unstructured":"Simmers, I. (2003). Understanding Water in a Dry Environment, A.A. Balkema Publishers.","DOI":"10.1201\/9780203971307"},{"key":"ref_40","unstructured":"Akan, O.A. (1993). Urban Stormwater Hydrology: A Guide to Engineering Calculations, Technomic Publishing."},{"key":"ref_41","unstructured":"Anderson, M.G. (2005). Encyclopedia of Hydrologocal Sciences, John Wiley & Sons, Ltd."},{"key":"ref_42","unstructured":"Warner, T.T. (2008). Desert Meteorology, Cambridge University Press."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"915","DOI":"10.1002\/(SICI)1099-1085(20000415)14:5<915::AID-HYP978>3.0.CO;2-4","article-title":"Sensitivity analysis of EUROSEM using Monte Carlo simulation I: Hydrological, soil and vegetation parameters","volume":"14","author":"Veihe","year":"2000","journal-title":"Hydrol. Process"},{"key":"ref_44","unstructured":"Saltelli, A., Tarantola, S., Campolongo, F., and Ratto, M. (2004). Sensitivity Analysis in Practice: A Guide to Assessing Scientific Models, John Wiley & Sons, Ltd."},{"key":"ref_45","unstructured":"Baird, A.J., and Wilby, R.L. (1999). Eco-Hydrology: Plants and Water in Terrestrial and Aquatic Environments, Routledge Physical Environment Series."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"83","DOI":"10.1016\/S0140-1963(95)80041-7","article-title":"Improving crop yields in the Sahel by means of water-harvesting","volume":"30","author":"Tabor","year":"1995","journal-title":"J. Arid Environ"},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"25","DOI":"10.1146\/annurev.es.04.110173.000325","article-title":"Desert ecosystems: Environment and producers","volume":"4","year":"1973","journal-title":"Annu. Rev. Ecol. Syst"},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"501","DOI":"10.1016\/S0140-1963(02)90973-0","article-title":"Soil-water behaviour of sandy soils under semi-arid conditions in the Duero Basin (Spain)","volume":"51","author":"Ceballos","year":"2002","journal-title":"J. Arid Environ"},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"33","DOI":"10.1016\/S0016-7061(99)00071-3","article-title":"The influence of tillage on semi-arid soil-water regimes in Zimbabwe","volume":"95","author":"Twomlow","year":"2000","journal-title":"Geoderma"},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"336","DOI":"10.1016\/j.jhydrol.2006.05.020","article-title":"Assessing the water balance in the Sahel: Impact of small scale rainfall variability on runoff Part 1: Rainfall variability analysis","volume":"331","author":"Balme","year":"2006","journal-title":"J. Hydrol"},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"210","DOI":"10.2307\/2347003","article-title":"Generating gamma and beta random variables with non-integral shape parameters","volume":"23","author":"Whittaker","year":"1974","journal-title":"Appl. Stat"},{"key":"ref_52","unstructured":"Henia, L. (2008). Atlas de L\u2019Eau en Tunisie, Universit\u00e9 de Tunis."},{"key":"ref_53","unstructured":"Global Gridded Surfaces of Selected Soil Characteristics (IGBP-DIS). Available online: http:\/\/daac.ornl.gov\/."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/5\/12\/6691\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T21:51:06Z","timestamp":1760219466000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/5\/12\/6691"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,12,4]]},"references-count":53,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2013,12]]}},"alternative-id":["rs5126691"],"URL":"https:\/\/doi.org\/10.3390\/rs5126691","relation":{},"ISSN":["2072-4292"],"issn-type":[{"type":"electronic","value":"2072-4292"}],"subject":[],"published":{"date-parts":[[2013,12,4]]}}}