ef1f9671-fd6c-4354-9cbc-ee1095b17b1c eng MODIS Global Terrestrial Drought Severity Index N/A University of Montana N/A http://www.ntsg.umt.edu/project/modis/dsi.php 2022-02-07T11:04:24 ISO 19115:2003/19139 1.0 http://www.ntsg.umt.edu/project/modis/dsi.php Spatial_reference EPSG 7.9 MODIS Global Terrestrial Drought Severity Index N/A > University of Montana N/A http://www.ntsg.umt.edu/project/modis/dsi.php This dataset can be used to obtain data of meteorological, agricultural andhydrological drought hazards on a weekly to annual basis for the world. Mapping meteorological drought hazard, Mapping agricultural drought hazard, Mapping hydrological drought hazard N/A University of Montana, N/A N/A P0Y0M0DT0H0M0S https://droughtcatalogue.com/thumbnails/Global_Dataset.png thumbnail https://droughtcatalogue.com/thumbnails/Global_Dataset.png large_thumbnail Type: Dataset Type of Drought: Meteorological, Agricultural, Hydrological Drought Application: Mapping meteorological drought hazard, Mapping agricultural drought hazard, Mapping hydrological drought hazard Extent: Global N/A Evapotranspiration and potential evapotranspiration from the MODIS MOD16 evapotranspiration data product Normalized Difference Vegetation Index from the MODIS MOD13 vegetation indices product Aggregation period: N/A Spatial scale: 0.5 eng World 1 -180 180 -90 90 2000 2011 Various http://www.ntsg.umt.edu/project/modis/dsi.php http://www.ntsg.umt.edu/project/modis/dsi.php World -180 180 -90 90 Mapping meteorological drought hazard, Mapping agricultural drought hazard, Mapping hydrological drought hazard Peer-reviewed Peer-reviewed 1 Codelist omission 1 Data requirements to use: N/A; Data used: Evapotranspiration and potential evapotranspiration from the MODIS MOD16 evapotranspiration data product Normalized Difference Vegetation Index from the MODIS MOD13 vegetation indices product; Data format: .hdf; Data access: FTP; Concise description: The remotely-sensed DSI uses operational global land products derived from NASA satellite observations, namely the MODIS terrestrial evapotranspiration (ET) and vegetation greenness products. ET is a metric of ecosystem functional status and is directly related to the water, carbon and energy cycles of the land surface. The ratio of ET to potential ET (PET) is commonly used as an indicator of terrestrial water availability and associated wetness or drought. Satellite vegetation greenness indices (VIs), especially the Normalized Difference VI (NDVI), can potentially link climate changes (e.g. increasing frequency and severity of drought) and vegetation responses with land-atmosphere water, carbon and energy fluxes, and associated climate feedbacks (Atkinson et al., 2011). The DSI incorporates NDVI and the ratio of ET to PET into a single index theoretically ranging from unlimited negative values (drier than normal) to unlimited positive values (wetter than normal). More detailed information on the DSI can be found in Mu et al. (2013). MODIS Global Terrestrial Drought Severity Index This dataset can be used to obtain data of meteorological, agricultural andhydrological drought hazards on a weekly to annual basis for the world. Dataset Meteorological, Agricultural, Hydrological Mapping meteorological drought hazard, Mapping agricultural drought hazard, Mapping hydrological drought hazard Fully operational Drought severity index Global 2000 2011 None The remotely-sensed DSI uses operational global land products derived from NASA satellite observations, namely the MODIS terrestrial evapotranspiration (ET) and vegetation greenness products. ET is a metric of ecosystem functional status and is directly related to the water, carbon and energy cycles of the land surface. The ratio of ET to potential ET (PET) is commonly used as an indicator of terrestrial water availability and associated wetness or drought. Satellite vegetation greenness indices (VIs), especially the Normalized Difference VI (NDVI), can potentially link climate changes (e.g. increasing frequency and severity of drought) and vegetation responses with land-atmosphere water, carbon and energy fluxes, and associated climate feedbacks (Atkinson et al., 2011). The DSI incorporates NDVI and the ratio of ET to PET into a single index theoretically ranging from unlimited negative values (drier than normal) to unlimited positive values (wetter than normal). More detailed information on the DSI can be found in Mu et al. (2013). http://www.ntsg.umt.edu/project/modis/dsi.php University of Montana N/A N/A N/A N/A Evapotranspiration and potential evapotranspiration from the MODIS MOD16 evapotranspiration data product Normalized Difference Vegetation Index from the MODIS MOD13 vegetation indices product .hdf FTP Spatial_reference 0.5 -180, 180, 90, -90 annual, 8-day interval N/A N/A Mu et al. (2013) N/A N/A Peer-reviewed