The Coral Reef Temperature Anomaly Database (CoRTAD) - Global, 4 km, Sea Surface Temperature and Related Thermal Stress Metrics for 1985-2005 (NCEI Accession 0044419)

The Coral Reef Temperature Anomaly Database (CoRTAD) is a collection of sea surface temperature (SST) and related thermal stress metrics, developed specifically for coral reef ecosystem applications but relevant to other ecosystems as well. The CoRTAD contains global, approximately 4 km resolution SST data on a weekly time scale from 1985 through 2005. In addition to SST, it contains SST anomaly (SSTA, weekly SST minus weekly climatological SST), thermal stress anomaly (TSA, weekly SST minus the maximum weekly climatological SST), SSTA Degree Heating Week (SSTA_DHW, sum of previous 12 weeks when SSTA >= 1 degree C), SSTA Frequency (number of times over previous 52 weeks that SSTA >= 1 degree C), TSA DHW (TSA_DHW, also known as a Degree Heating Week, sum of previous 12 weeks when TSA >= 1 degree C), and TSA Frequency (number of times over previous 52 weeks that TSA >= 1 degree C). The CoRTAD was created at the NOAA National Oceanographic Data Center in partnership with the University of North Carolina - Chapel Hill, with support from the NOAA Coral Reef Conservation Program.

To provide sea surface temperature data and related thermal stress parameters with good temporal consistency, high accuracy, and fine spatial resolution. The CoRTAD is intended primarily for climate and ecosystem related applications and studies and was designed specifically to address questions concerning the relationship between coral disease and bleaching and temperature stress.

珊瑚礁温度异常数据库（CoRTAD）系针对珊瑚礁生态系统应用而专门开发的海洋表面温度（SST）及其相关热应力指标集合，其适用范围亦涵盖其他生态系统。CoRTAD 包含了从1985年至2005年间的全球性、约4公里分辨率的SST数据，时间尺度为每周。除SST外，还包括SST异常（SSTA，每周SST减去每周气候SST）、热应力异常（TSA，每周SST减去最大每周气候SST）、SSTA加热周度（SSTA_DHW，前12周SSTA≥1摄氏度的总和）、SSTA频率（过去52周SSTA≥1摄氏度的次数）、TSA加热周度（TSA_DHW，亦称为加热周度，前12周TSA≥1摄氏度的总和）以及TSA频率（过去52周TSA≥1摄氏度的次数）。CoRTAD由美国国家海洋和大气管理局（NOAA）国家海洋数据中心与北卡罗来纳大学教堂山分校合作创建，并得到NOAA珊瑚礁保护计划的支持。该数据库旨在提供具有良好时间一致性、高精度和精细空间分辨率的海洋表面温度数据和相关热应力参数，主要用于气候和生态系统相关应用与研究，并专门设计以解决珊瑚疾病与白化现象与温度应力之间的关系问题。