What is SMAP data?
The NSIDC DAAC SMAP data collection includes data products derived from an L-band radiometer and high-resolution L-band radar instrument that make up the orbiting observatory of the Soil Moisture Active Passive (SMAP) satellite mission.
How do I view SMAP data?
- Visualize and download NASA SMAP Data.
- Step 1: Go to the NASA Worldview website.
- Step 2- Understanding the four main sections of the home page.
- Bottom panel – timescale and animation access (Section 2)
- Main panel – global map display (Section 3)
- Top panel – save and share map results (Section 4)
What does SMAP stand for?
Soil Moisture Active Passive
The Soil Moisture Active Passive (SMAP) mission is an orbiting observatory that measures the amount of water in the surface soil everywhere on Earth.
Why is SMAP important?
SMAP will provide information on soil moisture, which is critical for healthy plant growth, and will help improve crop yield forecasts and irrigation planning around the world. By indirectly monitoring global food production, SMAP will improve targeting of humanitarian food assistance.
Who uses SMAP?
NASA Soil Moisture Data Advance Global Crop Forecasts SMAP data are now being used operationally by the U.S. Department of Agriculture (USDA) to monitor global croplands and make commodity forecasts.
How much did SMAP cost?
915 million USD (2015)
Soil Moisture Active Passive/Cost
How deep can SMAP view into the soil?
In addition to the instrument measurements and derived products for the surface layer, SMAP will also provide Level 4 data assimilation products by ingesting active and passive observations into land surface models to provide root-zone soil moisture (to a depth of 100 cm).
How do you collect soil moisture data?
The data set is generated by integrating satellite-derived Soil Moisture Active Passive (SMAP) and Soil Moisture Ocean Salinity (SMOS) soil moisture observations into the modified two-layer Palmer model using Ensemble Kalman Filter (EnKF) data assimilation approach.
What does Samp mean?
Samp
| Acronym | Definition |
|---|---|
| Samp | Security Association Management Protocol |
| Samp | System Acquisition Management Plan |
| Samp | Software Acquisition Management Plan |
| Samp | Security Accreditation Management Plan |
Is SMAP still in orbit?
The science mission continues with data being returned only by the radiometer instrument. SMAP’s prime mission ended in June 2018. The 2017 Earth Science senior review endorsed the SMAP mission for continued operations through 2020, and preliminarily, through 2023.
How does the SMAP work?
SMAP’s antenna spins while it transmits and receives radar signals (microwaves at a frequency of 1.2 GHz) from a small patch of Earth’s surface. The spinning antenna combined with SMAP’s orbital motion sweeps out a series of intersecting loops that create a swatch 1000 km (621 miles) wide.
What is a good soil moisture content?
between 20% and 60%
What is Soil Moisture and Why Does it Matter? Soil moisture is a measure of soil health, the water content present in a certain area of the ground. All plants need to be in a specific soil moisture range — the majority of plants thrive in soil with a moisture level that ranges between 20% and 60%.
What are the SMAP science data products and related data?
The following table lists the SMAP science data products and related data. The Level 1 products contain raw or calibrated and geolocated instrument measurements from the SMAP Radar and Radiometer; all Level 1 products have a temporal resolution of 49 minutes, the length of time required for the SMAP satellite to complete a half orbit of the Earth.
SMAP, or Soil Moisture Active Passive, is an Earth satellite mission that measures and maps Earth’s soil moisture and freeze/thaw state to better understand terrestrial water, carbon and energy cycles.
What are the SMAP data latency requirements?
The SMAP data latency requirements on delivering data products to the science team and to the community is: Level 4 products (within 7 days for soil moisture and 14 days for carbon net ecosystem exchange) The SMAP data level definitions follow the standard terminology of the NASA Earth Observing System Data and Information System (EOSDIS).
What is a Level 1 SMAP product?
The Level 1 products contain raw or calibrated and geolocated instrument measurements from the SMAP Radar and Radiometer; all Level 1 products have a temporal resolution of 49 minutes, the length of time required for the SMAP satellite to complete a half orbit of the Earth.