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1 U.S Geological Survey (USGS) Land Cover Institute (LCI) 开放资源 机器抓取
  The USGS LCI acquires, processes and provides land cover data from local to global scales, and both domestic and international settings. These data are acquired by both civilian s...
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2 U.S. Department of Energy -- Central Internet Database (CID) 开放资源 机器抓取
  The CID is a gateway to waste management and facility information from current and archived Department of Energy (DOE) data sources. This new version of the CID provides DOE inform...
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3 U.S. Environmental Protection Agency: Envirofacts System Data 开放资源 机器抓取
  The Envirofacts Multisystem Search integrates information from a variety of databases and includes latitude and longitude information. Each of these databases contains information ...
  详细信息

4 U.S. Environmental Protection Agency: Laws and Regulations 开放资源 机器抓取
  This web site provides US environmental laws and regulations, which are a major tool in protecting the environment. Congress passes laws that govern the United States. To put those...
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5 U.S. Environmental Protection Agency: Online Library System 开放资源 机器抓取
  “联机图书馆系统”(OLS)提供由美国环境保护总署(USEPA)图书馆网络的联机图书馆系统,是由几个相关的数据库组成的,可以查找图书、报告和视听材料。该系统每两周更新一次资源。可以用多种方法来检索,如可以通过主题词、作者和关键词等。此外,通过OLS还可以查询其它一些专门馆藏。;OLS is the Online Library System for the ...
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6 U.S. Environmental Protection Agency: Wetlands 开放资源 机器抓取
  The EPA Wetlands web site offers the text of laws, regulations, and court decisions that govern wetland protection, as well as provides online access to permitting processes. Scien...
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7 U.S. Geological Survey : Mine Drainage Activities 开放资源 机器抓取
  This web site brings together much research being done by the USGS on mine drainage problems. It includes a listing of current USGS mine drainage projects by state, a directory of ...
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8 U.S. Geological Survey--Natural Hazards 开放资源 机器抓取
  In the United States each year, natural hazards cause hundreds of deaths and cost tens of billions of dollars in disaster aid, disruption of commerce, and destruction of homes and ...
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9 U.S. Pacific Coast and Western Region Internet Map Server sites 开放资源 机器抓取
  This Internet Map Server (IMS) site includes an index to 36 GLORIA sidescan sonar mosaics collected and processed by the USGS in 1984. In addition to the broad overview data, mult...
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10 Unidata′s RAMADDA (Unidata′s Motherlode Repository) 开放资源 机器抓取
  Our mission is to provide the data services, tools, and cyberinfrastructure leadership that advance earth-system science, enhance educational opportunities, and broaden participati...
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