NASA TOVS Pathfinder Project

The Microwave Sounding Unit (MSU) Lower Troposphere Deep Layer Temperature product (MSULTT) provides gridded lower tropospheric temperatures derived from MSU instruments on several different platforms. The temperatures are derived using a combination of MSU channels 2 and 3 which has an averaging kernel that peaks near 500 hecto Pascals. The algorithm is based on Spencer and Christy (1990) with the LIMB 93 limb correction based on latitude, longitude, month, and scan angle. The MSU instruments measure the thermal emission of radiation by molecular oxygen at four frequencies near 60 GHz. North ...微波探测仪（Microwave Sounding Unit, MSU）对流层下层深层温度产品（MSULTT）提供源自多平台搭载MSU仪器的网格化对流层下层温度数据。该温度数据通过结合MSU第2、3通道反演得到，其平均核峰值位于约500百帕处。该反演算法基于Spencer与Christy（1990）的研究成果，并采用基于纬度、经度、月份及扫描角的LIMB 93临边校正方法。MSU仪器通过探测约60吉赫附近四个频率处的分子氧热辐射开展观测。北……