CAL_IIR_L1-Standard-V2-00: CALIPSO Infrared Radiance Data

Global satellite data from the CALIPSO mission's Imaging Infrared Radiometer (IIR). This Level 1B product provides half-orbit geolocated, calibrated radiances registered to a 1 km grid centered on the satellite's lidar track. The data is used to study the impact of clouds and aerosols on Earth's radiation budget and climate.

Use Cases

• Analyzing cloud radiative properties based on calibrated infrared radiances
• Studying aerosol-cloud interactions using co-located lidar and infrared data
• Validating climate models with satellite-derived radiance measurements
• Investigating Earth's radiation budget using long-term, geolocated radiance time series

Strengths

• Data collection is explicitly described as 'ongoing', indicating continuity
• Product provides calibrated radiances on a defined 1 km spatial grid
• Mission was part of the international A-Train constellation, enabling coincident Earth observations

Limitations

• Column names and dataset size are unknown across all sources, limiting detailed assessment
• Conflicting mission status: one source states data collection is 'ongoing', while another states the science mission concluded on August 1, 2023
• Last update dates vary significantly between platforms (2020 vs. 2026)

Provenance

Source

NASA Langley Research Center Atmospheric Science Data Center (LARC_ASDC) in partnership with the French Space Agency (CNES)

Collection Method

Collected by the Imaging Infrared Radiometer (IIR) instrument aboard the CALIPSO satellite.

Time Range

From mission launch on April 28, 2006, with data collection described as ongoing.

Freshness

2026-03-13 07:20:28.840439

Geography

Global coverage along the satellite's orbital track.