Coweeta site, station Gordon County, GA (FIPS 13129), study of county area in units of squareKilometers on a yearly timescale

The EcoTrends project was established in 2004 by Dr. Debra Peters
(Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and
Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest)
to support the collection and analysis of long-term ecological datasets.
The project is a large synthesis effort focused on improving the accessibility
and use of long-term data. At present, there are ~50 state and federally funded
research sites that are participating and contributing to the EcoTrends project,
including all 26 Long-Term Ecological Research (LTER) sites and sites funded by
the USDA Agriculture Research Service (ARS), USDA Forest Service,
US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal
(http://www.ecotrends.info). This web portal enables the continuation of data
compilation and accessibility by users through an interactive web application.
Ongoing data compilation is updated through both manual and automatic
processing as part of the LTER Provenance Aware Synthesis Tracking
Architecture (PASTA). The web portal is a collaboration between the Jornada LTER
and the LTER Network Office. The following dataset from Coweeta (CWT)
contains county area measurements in squareKilometers units
and were aggregated to a yearly timescale.

EcoTrends项目（EcoTrends project）由黛布拉·彼得斯博士（Debra Peters，美国农业部农业研究服务局乔尔纳达实验牧场乔尔纳达盆地长期生态研究站，USDA-ARS Jornada Experimental Range）与阿里尔·卢戈博士（Ariel Lugo，美国农业部森林服务局卢奎洛实验森林卢奎洛长期生态研究站，Luquillo LTER, USDA-FS Luquillo Experimental Forest）于2004年成立，旨在为长期生态数据集的采集与分析工作提供支撑。该项目是一项大型综合研究工作，致力于提升长期生态数据的可访问性与利用程度。目前共有约50个州级与联邦资助的研究站点参与并向EcoTrends项目贡献数据，其中涵盖全部26个长期生态研究（Long-Term Ecological Research, LTER）站点，以及美国农业部农业研究服务局（USDA Agricultural Research Service, ARS）、美国农业部森林服务局、美国能源部、美国地质调查局（USGS）下属站点与众多高校的相关研究站点。EcoTrends项目的数据可通过探索式网络门户（http://www.ecotrends.info）获取，该门户依托交互式网页应用，支持用户持续开展数据汇编与数据获取工作。作为长期生态研究溯源感知综合跟踪架构（Provenance Aware Synthesis Tracking Architecture, PASTA）的组成部分，日常数据汇编工作通过手动与自动结合的处理方式进行更新。该网络门户由乔尔纳达长期生态研究站与LTER网络办公室联合开发。本项来自科韦塔（Coweeta, CWT）的数据集包含以平方千米为单位的县域面积测量数据，且已按年度时间尺度进行聚合。