Overall science goals of the High-Resolution Dynamics Limb Sounder (HIRDLS) were to observe the global distributions of temperature and several trace species in the stratosphere and upper troposphere at high vertical and horizontal resolution. HIRDLS also provided observations of aerosols in the upper troposphere, stratosphere, and mesosphere. HIRDLS stopped collecting data on March 17, 2008.
Delivery of Suomi National Polar-orbiting Partnership (Suomi NPP) satellite data products will cease on November 1, 2026. Data users should transition now to alternative products from NOAA-21 and NOAA-20.
Suomi NPP data announcement