Nimbus High Resolution Infrared Radiometer Grayscale Swath Data L1, TIFF, Version 1

This data set consists of daily, global grayscale TIFF images derived from radiative temperatures measured in the 3.4 to 4.2 µm window. These data were detected by the High Resolution Infrared Radiometer (HRIR) on board the Nimbus 1, Nimbus 2, and Nimbus 3 satellites during 1964, 1966, and 1969-1970. The Nimbus HRIR sensor was used to map the earth's nighttime cloud cover and to measure cloud top temperatures or surface temperatures. Note: This data set is not georeferenced and contains some gaps in temporal coverage because of missing data.

本数据集包含每日全球灰度标签图像文件格式（TIFF）影像，其数据源自3.4至4.2微米波段下测得的辐射温度。此类数据由搭载于雨云1号、雨云2号及雨云3号卫星的高分辨率红外辐射计（High Resolution Infrared Radiometer, HRIR）分别于1964年、1966年及1969-1970年间采集获取。雨云系列卫星搭载的HRIR传感器主要用于绘制地球夜间云覆盖分布图，并测量云顶温度或地表温度。注：本数据集未进行地理配准，且因数据缺失存在部分时间覆盖缺口。