中国沿海省区极端气温栅格数据集

中国沿海地区人口密集、城市化进程快、经济发达，同时，该地区自然灾害频发、生态环境脆弱，极易受气候变化的影响。基于1961–2014年中国156个地面气象站点日尺度的最高气温和最低气温，采用RClimDex模型计算了中国沿海省区（1４个省、自治区、直辖市、特别行政区；台湾数据暂缺）16项极端气温因子数据，包括：冷昼日数（TX10p）、冷夜日数（TN10p）、暖昼日数（TX90p）、暖夜日数（TN90p）、霜冻日数（FD0）、冰冻日数（ID0）、夏季日数（SU25）、热夜日数（TR20）、日最高气温的极高值（TXx）、日最低气温的极高值（日最低气温的极高值）、日最高气温的极低值（TXn）、日最低气温的极低值（TNn）、暖持续日数（WSDI）、冷持续日数（CSDI）、生长季长度（GSL）以及气温日较差（DTR），根据这些因子数据，利用反距离权重插值方法研发出中国沿海省区极端气温栅格数据集。该数据集包括：（1）中国沿海省区16个极端气温因子1961–2014年的多年平均值栅格数据；（2）中国沿海省区16个极端气温因子1961–2014年间年际倾向率的栅格数据。该数据集的空间分辨率为8.934 km，数据集存储为.tif格式，32组文件（共128个数据文件），数据量为12.5 MB （压缩为1个文件，2.15 MB）。该数据集的分析研究成果发表在《生态学报》2017年37卷第21期。

China's coastal regions feature dense populations, rapid urbanization, and a developed economy. Meanwhile, this area is prone to frequent natural disasters, has a fragile ecological environment, and is highly susceptible to the impacts of climate change. Based on the daily maximum and minimum temperature data from 156 ground meteorological stations in China during 1961–2014, the RClimDex model was used to calculate 16 extreme temperature factor datasets for China's coastal provinces, autonomous regions, municipalities directly under the Central Government, and special administrative regions (14 in total; data for Taiwan is temporarily unavailable), including: number of cool days (TX10p), number of cool nights (TN10p), number of warm days (TX90p), number of warm nights (TN90p), frost days (FD0), icing days (ID0), summer days (SU25), tropical nights (TR20), maximum value of daily maximum temperature (TXx), maximum value of daily minimum temperature (TNx), minimum value of daily maximum temperature (TXn), minimum value of daily minimum temperature (TNn), warm spell duration index (WSDI), cold spell duration index (CSDI), growing season length (GSL), and diurnal temperature range (DTR). Using these factor datasets and the inverse distance weighting interpolation method, a gridded extreme temperature dataset for China's coastal regions was developed. This dataset consists of two parts: (1) Gridded multi-year average data of the 16 extreme temperature factors for China's coastal regions during 1961–2014; (2) Gridded interannual trend rate data of the 16 extreme temperature factors for China's coastal regions during 1961–2014. The spatial resolution of this dataset is 8.934 km. It is stored in .tif format, with 32 file groups (totaling 128 data files), and the total data volume is 12.5 MB (compressed into a single file of 2.15 MB). The analytical research results of this dataset were published in *Acta Ecologica Sinica*, Volume 37, Issue 21, 2017.

搜集汇总

背景与挑战

背景概述

该数据集涵盖1961-2014年中国沿海省份的16个极端气温因子，包括冷日、暖夜等指标，空间分辨率为8.934公里。数据基于156个气象站数据计算，采用RClimDex模型和反距离权重插值方法生成，为研究中国沿海地区气候变化提供了重要基础。