Palmer Station site, station Palmer Station, study of precipitation in units of centimeter 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 Palmer Station (PAL) contains precipitation measurements in centimeter units and were aggregated to a yearly timescale.EcoTrends项目由德布拉·彼得斯博士（乔纳达盆地长期生态研究站点（Long-Term Ecological Research，LTER），美国农业部农业研究局乔纳达实验牧场）与阿里尔·卢戈博士（卢奎洛长期生态研究站点（Long-Term Ecological Research，LTER），美国农业部林业局卢奎洛实验森林）于2004年创立，旨在支撑长期生态数据集的采集与分析工作。本项目为大型综合研究项目，核心聚焦于提升长期数据的可获取性与应用效率。目前，约有50个由州政府及联邦政府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LTER站点，以及由美国农业部农业研究局（USDA-ARS）、美国农业部林业局（USDA-FS）、美国能源部、美国地质调查局（USGS）与众多高校资助的各类站点。EcoTrends项目的数据可通过探索性网络门户（http://www.ecotrends.info）获取。该网络门户依托交互式Web应用程序，支持用户持续开展数据汇编与数据获取工作。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人工与自动两种处理方式完成更新。本网络门户是乔纳达LTER与LTER网络办公室的合作成果。以下来自帕尔默站（PAL）的数据集包含以厘米为单位的降水测量数据，且已聚合至年时间尺度。