Nimbus-5 ESMR Polar Gridded Brightness Temperatures, Version 2

The Nimbus-5 Electrically Scanning Microwave Radiometer (ESMR) data set consists of gridded brightness temperature arrays for the Arctic and Antarctic, spanning 11 December 1972 through 16 May 1977. The ESMR instrument senses horizontally polarized radiation at a frequency of 19 GHz. The data are gridded to a polar stereographic projection at 25 km resolution and adjusted to partially remove instrument drift and sensitivity shifts. Daily data that could not be adjusted are missing from this data set. Data are in 2-byte integer flat-binary format.

Nimbus-5电扫描微波辐射计（Electrically Scanning Microwave Radiometer，ESMR）数据集包含覆盖北极与南极的网格化亮温阵列，时间跨度为1972年12月11日至1977年5月16日。该仪器可探测频率为19 GHz的水平极化辐射。本数据集以25 km的分辨率采用极地立体投影（polar stereographic projection）进行网格化处理，并经过校正以部分消除仪器漂移与灵敏度偏移。无法完成校正的每日数据未被收录于本数据集。数据采用2字节整数扁平二进制格式存储。