Validation of the Calibrated Microwave Lunar Radiative Transfer Model With the ATMS 2-D Moon Observations at Different Moon Phase Angles

Details

• Journal Title:
  IEEE Geoscience and Remote Sensing Letters
• Personal Author:
  Yang, Hu ; Kim, Edward ; Sammons, Matthew ; Lyu, Cheng-Hsuan ; Abraham, Saji ; Bringer, Alexandra ; Fuentes, James ; Kam, James ; Sun, Ninghai ; Liang, XingMing
• NOAA Program & Office:
  NESDIS (National Environmental Satellite, Data, and Information Service) ; CISESS (Cooperative Institute for Satellite Earth System Studies)
• Description:
  The NOAA-21 Advanced Technology Microwave Sounder (ATMS), launched in November 2022, collected 2-D lunar scan data on March 10, 2023, during its commissioning phase at a Moon phase angle of 34°. The raw data were calibrated using Microwave Calibration Processing System (MiCalPS), a microwave calibration and geolocation tool developed at the University of Maryland. Analysis showed that NOAA-21’s lunar antenna gain is generally lower than NOAA-20’s due to sampling rate differences. After correcting for beam-pointing errors, disk-averaged lunar brightness temperatures ( TDISKB,Moon ) were derived for 23–183 GHz. These were compared with NOAA-20 data at 0° phase angle and predictions from the microwave lunar radiative transfer model (MLRTM). The observed model differences were: −3.3 K (K-band), 0.01 K (V), 2.0 K (W), −2.3 K (low-G), and 1.6 K (high-G), consistent with predicted phase delay trends. Further observations at varying Moon phases are recommended to enhance MLRTM validation.
• Source:
  IEEE Geoscience and Remote Sensing Letters, 22, 1-5
• DOI:
  https://doi.org/10.1109/LGRS.2025.3582666
• ISSN:
  1545-598X ; 1558-0571
• Format:
  pdf
• Publisher:
  Institute of Electrical and Electronics Engineers (IEEE)
• Document Type:
  Journal Article
• Funding:
  Grant no. NA14NES4320003
• License:
  https://creativecommons.org/licenses/by/4.0/
• Rights Information:
  CC BY
• Compliance:
  Submitted
• Main Document Checksum:
  urn:sha-512:6ac2f09f014dfc91dc5f47a1ec8c6aa57c0b8f27808a88a1a823a01a066baf49f9e7436eb97408fb7b29ad61672932ebf5f78abb9efa82464690e48afa8a4d29
• Download URL:
  https://repository.library.noaa.gov/view/noaa/72106/noaa_72106_DS1.pdf
• File Type:
  [PDF - 1.78 MB ]