Central Arizona - Phoenix Urban LTER site, station NWS COOP #021026, Buckeye AZ, study of air temperature (mean minimum) in units of celsius on a monthly 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 Central Arizona - Phoenix Urban LTER (CAP)
contains air temperature (mean minimum) measurements in celsius units
and were aggregated to a monthly timescale.

生态趋势项目（EcoTrends）由黛布拉·彼得斯博士（约纳达盆地长期生态研究站点，美国农业部农业研究局（USDA-ARS）约纳达实验牧场）与阿里尔·卢戈博士（卢奎洛长期生态研究站点，美国农业部林业局（USDA-FS）卢奎洛实验森林）于2004年发起成立，旨在支撑长期生态数据集的采集与分析工作。本项目属于大型综合研究工作，核心目标是提升长期生态数据的可访问性与利用率。目前，已有约50个州级及联邦资助的研究站点参与生态趋势项目并贡献数据，其中涵盖全部26个长期生态研究（Long-Term Ecological Research, LTER）站点，以及由美国农业部农业研究局（Agricultural Research Service, ARS）、美国农业部林业局、美国能源部、美国地质调查局（United States Geological Survey, USGS）及多所高校资助的研究站点。生态趋势项目的数据集可通过探索性网络门户（http://www.ecotrends.info）获取，该门户依托交互式Web应用程序，支持用户持续开展数据汇编与数据获取工作。作为长期生态研究站点溯源感知综合跟踪架构（Provenance Aware Synthesis Tracking Architecture, PASTA）的组成部分，项目的常态化数据汇编工作通过手动与自动两种处理方式完成更新。该网络门户由约纳达LTER站点与LTER网络办公室合作开发运营。以下为来自中亚利桑那-凤凰城城市长期生态研究（Central Arizona - Phoenix Urban LTER, CAP）的数据集，其中包含以摄氏度为单位的平均最低气温测量数据，且已按月度时间尺度完成聚合。