Event - Application of NASA SPoRT-Land Information System (SPoRT-LIS) Soil Moisture Data for Drought
Application of NASA SPoRT-Land Information System (SPoRT-LIS) Soil Moisture Data for Drought
Earth Science Applied Sciences (NASA)
- Climate Change
2023/05/17 10:00 AM EDT (UTC-4)
2023/05/31 16:30 PM EDT (UTC-4)
This training is focused on the introduction of the NASA Land Information System (LIS) output of soil moisture at various depths for drought analysis and monitoring. Traditional drought applications and indices focus on sensible weather (temperature, wind, etc.) and precipitation trends and their impacts on the hydrologic system. As a result of the NASA Short-term Prediction Research and Transition Center (SPoRT) program and its research-to-operations (R2O) work, this training will demonstrate how LIS output of soil moisture from a land surface model (LSM) can be included in traditional drought monitoring applications. The NASA SPoRT Program has implemented a version of NASA LIS (SPoRT-LIS) that utilizes near real-time Green Vegetation Fraction (GVF) from S-NPP/VIIRS retrievals, as opposed to static, climatology values of GVF. Additionally, near real-time forcing of the LSM by the Multi-Radar Multi-Sensor (MRMS) precipitation and the Global Data Assimilation System (GDAS) sensible weather data provide near real-time, observation-driven products with ~2–8 hours latency. Each of these enables a more accurate depiction of vegetation and soil moisture impacts related to both long-term and short-term drought events, including rapid-onset flash drought events. Research-to-Operations work at SPoRT has led to the development of value-added products such as the derived percentile products for soil moisture. For example, low percentile values from SPoRT-LIS have been shown to correspond well to areas experiencing short-term drought within the U.S. Drought Monitor (USDM). Via Operations-to-Research (O2R) activities with end-users, soil moisture changes on various timescales pertinent to drought applications have been added to the SPoRT-LIS output data suite.