Georgia Coastal Ecosystems site, station NOAA Station 8670870, Ft. Pulaski, GA, study of mean sea level: the arithmetic mean of hourly heights observed over the National Tidal Datum Epoch (as defined by NOAA) in units of meter 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 Georgia Coastal Ecosystems (GCE)
contains mean sea level: the arithmetic mean of hourly heights observed over the National Tidal Datum Epoch (as defined by NOAA) measurements in meter units
and were aggregated to a yearly timescale.

EcoTrends项目由黛布拉·彼得斯博士（约拿盆地长期生态研究站，USDA-ARS约拿实验牧场）和阿里尔·卢戈博士（卢奎洛长期生态研究站，USDA-FS卢奎洛实验林）于2004年创立，旨在支撑长期生态数据集的采集与分析工作。
该项目是一项大型综合研究工作，核心目标是提升长期生态数据的可获取性与应用价值。目前共有约50个州级及联邦资助的研究站点参与并为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（Agricultural Research Service, ARS）、美国农业部林务局（USDA Forest Service, USDA-FS）、美国能源部、美国地质调查局（US Geological Survey, USGS）资助的站点，另有众多高校参与。
EcoTrends项目的数据可通过探索型网络门户（http://www.ecotrends.info）获取，该门户依托交互式网络应用，支持用户持续开展数据汇编与共享工作。作为LTER溯源感知综合跟踪架构（Provenance Aware Synthesis Tracking Architecture, PASTA）的组成部分，持续推进的数据汇编工作通过手动与自动两种处理方式进行更新。
该网络门户由约拿盆地LTER站与LTER网络办公室联合开发。
以下来自乔治亚海岸生态系统（Georgia Coastal Ecosystems, GCE）的数据集包含平均海平面数据：该数据以米为单位，为美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）定义的国家潮汐基准面纪元下逐时观测潮高的算术平均值，并按年时间尺度进行聚合。