NCA-LDAS Assimilated Data
This page describes the datasets that are assimilated during NCA-LDAS simulations.
*Table scrolls to right
The datasets that are assimilated include:
| Name | Variable / Data | Platform(s) | Years | Reference |
|---|---|---|---|---|
| ESA CCI | Surface soil moisture | Various | 1979-2002 | Liu et al. (2011) |
| LPRM (AMSR-E) | Surface soil moisture | Aqua | 2002-2011 | Owe et al. (2008) |
| SMOPS (ASCAT) | Surface soil moisture | Metop-A/B | 2007-2016 | ATB Document |
| SMOPS (ESA) | Surface soil moisture | SMOS | 2010-2016 | Documents |
| SMAP | Surface soil moisture | SMAP | 2015-2016 | Documents |
| SMMR | Snow depth | Various | 1979-1987 | Document |
| SMM/I | Snow depth | Various | 1987-2002 | Document |
| AMSR-E | Snow depth | Aqua | 2002-2011 | Document |
| AMSR2 | Snow depth | GCOM-W1 | 2012-2016 | Documentation |
| IMS | Snow-covered area | Various | 1997-2016 | Documentation |
| MODIS | Snow-covered area | Terra | 2000-2016 | Documentation |
| MODIS | Irrigated area | Terra | Demand-based | Ozdogan and Gutman (2008) |
Based on the Ozdogan et al. (2010) method, a "spray" type irrigation scheme is used, where the scheme is "triggered" when root-zone soil moisture reaches a specified threshold in the model (e.g., 50% of field capacity). Also, the root zone based on the crop type is taken into account when applying the threshold. For more details, please refer to Ozdogan et al. (2010) (e.g., Section 4b).
