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青海省河湟谷地2000年耕地重建数据
本数据包含河湟谷地102年耕地空间分布格局栅格数据，空间分辨率为1km×1km。汉代的耕地数据来源于要来源于《文献通考·卷七·田赋考七》、《青海通史》、《汉书》、《后汉书》、《中国屯垦研究史》。搜集耕地数据后将原始田亩数据进行校正，将历史耕地数据转换为统一的现代单位（km2），后采用网格化模型将耕地数据进行空间化。河湟谷地是青藏高原最主要的农业发展区之一，通过整理、校正该区历史文献中记载的102年
国家青藏高原科学数据中心2025-04-10 更新260
1994 Photo Mosaics - Pools 8
In 1994, the U.S. Fish and Wildlife Service (FWS) collected 1:15,000-scale true color aerial photographs in Mississippi River Navigation Pools 7 and 8. The FWS contracted the Upper Midwest Environmen
DataONE2016-10-29 更新60
Aerial view of Los Angeles Harbor facing north over the San Pedro Breakwater into the main channel
Aerial view of Los Angeles Harbor facing north over the San Pedro Breakwater into the main channel, I.N.S. Bureau of Prisons, United States Customs House, Los Angeles Yacht Club, Fish Canneries, Smith
Mendeley Data2024-01-31 更新50
National Ocean Service Aerial Photographs: Seward Peninsula Coastline - Flight Line 9
This aerial photograph collection consists of about 1897 frames of color infrared and natural color transparencies. It was flown in the summers of 1976 and 1977 for the Outer Continental Shelf Enviro
DataONE2016-12-23 更新70
Photogrammetric scans of aerial photographs of North American glaciers, 1991. Roll 3 thumbnails
Introduction: Between 1958 and 1999, Austin Post led the USGS collection of aerial imagery of North American glaciers. These images are primarily vertical stereo black and white images, although sin
DataONE2017-07-19 更新50
