ESA-CCI Driven Vertical Soil Moisture Profile (Root zone) Database (EDVSMPD) for Indian Mainland

The ‘ESA-CCI Driven Vertical Soil Moisture Profile (Root zone) Database (EDVSMPD) for Indian Mainland (EDVSMP)’ is soil moisture profile database at surface (~0-5 cm), 10, 20, 51 and 102 cm depths for Indian Mainland. It is developed by applying Statistical Soil Moisture Profile (SSMP) model (Pal et al., 2016; Pal and Maity, 2020) using the surface Soil Moisture (SM) product developed by Climate Change Initiative (CCI) program of the European Space Agency (ESA) (ESA-CCI) (Liu et al., 2012; Wagner et al., 2012, http://www.esa-soilmoisture-cci.org). The SSMP model is a spatially varying statistical framework that couples the memory and forcing of SM from the overlying layers and utilizes the information of Hydrologic Soil Groups (HSGs) that makes it spatially transferable. The model estimates SM at four depths i.e. 10, 20, 51 and 102 cm using the surface SM information (~ 0-5 cm) at daily scale for the time period of November 1, 1978 to December 31, 2014. The gridded, volumetric SM data (m3/m3) is available at 0.25×0.25° spatial resolution and the spatial extent of the data is 6°N to 38°N and 66°E to 98°E (latitude and longitude wise respectively).

《基于欧洲航天局（ESA）气候变化倡议（CCI）驱动的印度次大陆垂直土壤水分剖面数据库（EDVSMPD）（根区）》（EDVSMP）系地表（约0-5厘米）、10厘米、20厘米、51厘米和102厘米深度处的土壤水分剖面数据库。该数据库采用统计土壤水分剖面模型（SSMP，Pal et al., 2016; Pal and Maity, 2020）开发而成，模型基于欧洲航天局（ESA）气候变化倡议（CCI）项目开发的表面土壤水分（SM）产品（Liu et al., 2012; Wagner et al., 2012, http://www.esa-soilmoisture-cci.org）。SSMP模型是一种空间变异性统计框架，它结合了上层土壤水分（SM）的记忆力和驱动力，并利用水文土壤组（HSGs）的信息，使其具有空间可迁移性。模型通过地表土壤水分信息（约0-5厘米）在日尺度上估算四个深度（10厘米、20厘米、51厘米和102厘米）处的土壤水分，时间跨度为1978年11月1日至2014年12月31日。网格化、体积土壤水分数据（m3/m3）以0.25×0.25°的空间分辨率提供，数据的空间范围为6°N至38°N和66°E至98°E（分别以纬度和经度计）。