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| NOAA Laboratory for Satellite Altimetry | |
|---|---|
| Name | NOAA Laboratory for Satellite Altimetry |
| Established | 1990s |
| Type | Research laboratory |
| Location | Silver Spring, Maryland |
| Parent organization | National Oceanic and Atmospheric Administration |
NOAA Laboratory for Satellite Altimetry is a scientific research laboratory within the National Oceanic and Atmospheric Administration focused on processing, validating, and applying satellite altimetry observations for oceanographic and cryospheric science. The laboratory develops retrieval algorithms, calibrates instruments, and delivers operational data streams that support operational centers and academic research. Its activities inform National Weather Service forecasting, National Aeronautics and Space Administration mission planning, and international programs such as the Intergovernmental Oceanographic Commission and the Group on Earth Observations.
The laboratory traces origins to altimetry efforts in the late 20th century driven by collaborations among National Oceanic and Atmospheric Administration, National Aeronautics and Space Administration, European Space Agency, and academic institutions including Scripps Institution of Oceanography and Woods Hole Oceanographic Institution. Early work supported missions such as TOPEX/Poseidon, Jason-1, and ERS-1, evolving through cooperative projects with CNES and EUMETSAT. Milestones include operationalization of near-real-time sea level data during the 1997–1998 El Niño, contributions to reprocessing initiatives framed by the Global Climate Observing System, and formal establishment as an NOAA focal point for satellite altimetry during interoperability efforts with US Geological Survey and Department of Defense programs.
The laboratory's mission aligns with mandates from National Oceanic and Atmospheric Administration leadership, prioritizing observational continuity, data quality, and user-driven products. Objectives include producing calibrated sea surface height, sea surface topography, and sea level trend datasets for stakeholders such as the National Weather Service, National Centers for Environmental Prediction, and the United Nations Framework Convention on Climate Change reporting processes. The laboratory advances algorithm development in concert with standards promoted by the Committee on Earth Observation Satellites and responsiveness to requirements from the Intergovernmental Panel on Climate Change assessments.
Organizationally, the laboratory operates within NOAA's research enterprise alongside centers like the Pacific Marine Environmental Laboratory and the Atlantic Oceanographic and Meteorological Laboratory. Facilities include high-performance computing clusters, instrument calibration labs, and coastal testbeds shared with partners such as Johns Hopkins University Applied Physics Laboratory and University of Maryland, College Park. Staffing comprises researchers from backgrounds linked to Columbia University, Massachusetts Institute of Technology, Imperial College London, and professionals with service in programs overseen by National Academy of Sciences panels. The lab maintains field calibration infrastructure that interacts with networks like the Global Sea Level Observing System and tide gauge archives curated by Permanent Service for Mean Sea Level.
Research programs emphasize algorithm refinement, uncertainty quantification, and multidisciplinary applications spanning oceanography, cryosphere, and hydrology. Active projects include improved coastal altimetry processing used by NOAA National Ocean Service, sea ice thickness retrievals relevant to National Snow and Ice Data Center, and inland water monitoring aligned with Global Climate Observing System priorities. The laboratory contributes to method development for crossover analysis used by teams at Jet Propulsion Laboratory and for cross-calibration campaigns with European Space Agency mission teams. It also engages in capacity building with institutions such as Universidad Nacional Autónoma de México and Indian Space Research Organisation.
The laboratory supports a portfolio of satellite missions and sensor types, engaging with altimeter payloads on platforms including Jason-3, Sentinel-3, ICESat-2, and newer missions led by CNES and EUMETSAT. Instrumentation efforts cover radar altimeters, synthetic aperture radar modes, and laser altimeters, with engineering collaborations tied to laboratories at Langley Research Center and Goddard Space Flight Center. The lab participates in pre-launch calibration activities and post-launch validation exercises used by mission teams at Centre National d'Études Spatiales and European Space Agency to ensure traceability to standards advocated by the International Association for the Physical Sciences of the Oceans.
Data products include operational sea surface height maps, mean sea surface models, coastal tide-corrected time series, and gridded sea level rise products used by National Centers for Environmental Information, Federal Emergency Management Agency, and academic users at Princeton University. Applications span ocean circulation studies informing work at Woods Hole Oceanographic Institution, extreme event monitoring supporting National Hurricane Center analyses, and climate trend detection relevant to Intergovernmental Panel on Climate Change assessments. The laboratory distributes near-real-time streams compatible with data systems at Copernicus Climate Change Service and provides reprocessed climate records utilized by researchers at Lamont–Doherty Earth Observatory.
The laboratory maintains partnerships with international agencies and universities, coordinating with National Aeronautics and Space Administration, European Space Agency, CNES, EUMETSAT, and research centers including Scripps Institution of Oceanography, Woods Hole Oceanographic Institution, Lamont–Doherty Earth Observatory, and University of Southampton. It engages in joint working groups under the Committee on Earth Observation Satellites and supports capacity development with regional bodies such as the Inter-American Development Bank and the South Pacific Applied Geoscience Commission. Collaborative outputs include shared calibration campaigns, interoperable data formats adopted by Group on Earth Observations initiatives, and co-authored studies in venues frequented by members of the American Geophysical Union and the European Geosciences Union.