干旱区地理 ›› 2022, Vol. 45 ›› Issue (2): 512-521.doi: 10.12118/j.issn.1000-6060.2021.280
赵志欣1,2(),霍艾迪1,2(),张丹3,易秀1,2,陈思名1,2,陈四宾1,2,陈建1,2
收稿日期:
2021-06-18
修回日期:
2021-09-26
出版日期:
2022-03-25
发布日期:
2022-04-02
通讯作者:
霍艾迪
作者简介:
赵志欣(1996-),女,硕士研究生,主要从事生态环境变化与灾害等方面的研究. E-mail: 基金资助:
ZHAO Zhixin1,2(),HUO Aidi1,2(),ZHANG Dan3,YI Xiu1,2,CHEN Siming1,2,CHEN Sibin1,2,CHEN Jian1,2
Received:
2021-06-18
Revised:
2021-09-26
Online:
2022-03-25
Published:
2022-04-02
Contact:
Aidi HUO
摘要:
高温热浪灾害风险信息对全球气候变暖及快速城市化条件下的防控极端灾害事件具有重要的参考价值。为了解决高温热浪危险性因子评估不全面的问题,基于多源卫星遥感数据和社会经济统计数据,在结合地表温度和气象数据作为高温危险性因子的基础上,通过层次分析法和图层叠置法评估模型计算得到2014—2019年7—8月宁夏高温热浪风险等级空间分布图。结果表明:宁夏高温热浪风险总体上处于中等偏上水平,较高和高风险地区面积占比从2014年39.52%增长至2019年62.65%;受地理纬度、地形和气候的影响,高温风险分布出现明显的空间差异,北部风险总体高于南部风险(高出约13.27%),西部风险高于东部(高出约12.30%);高风险地区集中在中卫市和石嘴山市,这主要是城市高温和相对较低的医疗水平共同作用的结果。研究结果有助于服务城市高温灾害的预防以及制定应对高温热浪应急方案。
赵志欣,霍艾迪,张丹,易秀,陈思名,陈四宾,陈建. 基于遥感的宁夏地区高温热浪风险评估[J]. 干旱区地理, 2022, 45(2): 512-521.
ZHAO Zhixin,HUO Aidi,ZHANG Dan,YI Xiu,CHEN Siming,CHEN Sibin,CHEN Jian. Assessing heat wave risk in Ningxia segment based on remote sensing[J]. Arid Land Geography, 2022, 45(2): 512-521.
表1
数据详细说明"
数据名称 | 观测平台 | 时间分辨率/次·d-1 | 空间分辨率/km | 数据来源 |
---|---|---|---|---|
LST | Aqua | 2 | 1.00 | https://modis.gsfc.nasa.gov/ |
NDVI | Aqua | 2 | 0.25 | https://modis.gsfc.nasa.gov/ |
DMSP/OLS夜间灯光 | DMSP | 1 | 1.00 | http://ngdc.noaa.gov/eog/ |
DEM | Terra | 2 | 0.08 | http://www.gscloud.cn/search |
气象数据 | - | - | - | http://data.cma.cn |
社会统计数据 | - | - | - | 2014、2017年和2019年宁夏统计年鉴 |
表2
高温热浪风险评估指标体系及权重"
目标层(A) | 准则层(B) | 指标层(C) |
---|---|---|
高温热浪 风险A | 高温热浪危险性B1(+0.46) | 地表温度C1(+0.4) |
气温C2(+0.4) | ||
降水量C3(-0.1) | ||
风速C4(-0.05) | ||
气压C5(-0.05) | ||
社会经济脆弱性B2(+0.31) | 人居指数C6(+0.6) | |
常住人口C7(+0.24) | ||
14岁以下65岁以上 人口占比C8(+0.1) | ||
建筑施工人员C9 (+0.06) | ||
高温热浪风险适应性B3 (-0.23) | 人均GDP C10(-0.6) | |
城镇每百户空调拥有率C11(-0.18) | ||
城镇卫生机构床位数C12(-0.11) | ||
城镇医疗卫生技术人员C13(-0.11) |
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