AirMOSS: L1 S-0 Polarimetric Data from AirMOSS P-band SAR, Tonzi Ranch, 2012-2015

This data set provides level 1 (L1) polarimetric radar backscattering coefficient (sigma-0), multilook complex, polarimetrically calibrated, and georeferenced data products from the Airborne Microwave Observatory of Subcanopy and Subsurface (AirMOSS) radar instrument collected over the Tonzi Ranch site in California. The AirMOSS radar is a P-band (UHF) fully polarimetric synthetic aperture radar (SAR) currently operating in the 420-440 MHz band designed to measure root-zone soil moisture (RZSM) and is flown on a NASA Gulfstream-III aircraft. Flight campaigns took place at least biannually from 2012 to 2015 at 10 study sites across North America. The acquired L1 P-band radar backscatter data will be used to retrieve the RZSM at the study sites. Subsequent analyses will investigate both seasonal and inter-annual variability in soil moisture and the relationships to carbon fluxes and their associated uncertainties on a continental scale.

本数据集提供了从加利福尼亚州托尼牧场地区采集的，由机载微波观测仪（AirMOSS）雷达仪器生成的第一级（L1）极化雷达后向散射系数（sigma-0）、多视复数、极化校准以及地理参照的数据产品。AirMOSS雷达是一款P波段（超高频）全极化合成孔径雷达（SAR），目前运行在420-440 MHz频段，旨在测量根区土壤水分（RZSM），并搭载于NASA的Gulfstream-III飞机上。自2012年至2015年间，该雷达至少每半年进行一次飞行任务，覆盖北美地区的10个研究站点。所获取的L1 P波段雷达后向散射数据将被用于提取研究站点的根区土壤水分。后续分析将探究土壤水分的季节性和年际变化，及其与碳通量及其相关不确定性的关系，范围覆盖整个大陆。