ATL22 is a Level 3B dataset from NASA's ICESat-2 mission, providing mean inland surface water quantities. The NSIDC_CPRD organization produced this derivative product from higher-resolution ATL13 along-track water profiles. Data was last updated in March 2025.
Use Cases
- Analyzing trends in mean water surface height for specific inland water bodies.
- Calibrating hydrological models using satellite-derived mean water level data.
- Assessing interannual variability of lake and reservoir storage from mean surface elevation.
- Combining mean water quantities from ATL22 with high-resolution profiles from ATL13 for comprehensive analysis.
Strengths
- Derived from the continuous, high-resolution ATL13 product based on geolocated photon data.
- Provides consistent orbit and water body nomenclature for conjunction use with the ATL13 source product.
Limitations
- Contains mean quantities, losing the high-resolution along-track detail of the source ATL13 data.
- Specific row count, geographic coverage, and temporal range are not provided in the input.
Provenance
- Source
- NSIDC_CPRD, derived from NASA ICESat-2 ATL03 and ATL13 products.
- Collection Method
- Computed from ATL13 along-track inland water surface profiles, with no additional photon analysis.
- Time Range
- null
- Freshness
- Last updated March 2025.
- Geography
- Global inland water bodies covered by the ICESat-2 mission.