CAJ | 학술논문

利用1970-2006年的常规气象站温度观测数据和Landsat-5 TM影像,选取杭州湾三个地区具有代表性的城市站和乡村站,根据亮度温度计算模型反演三个研究区域的亮度温度,研究杭州湾地区城市热岛效应37年来时间演变特征和空间分布特征.结果表明:(1)杭州湾地区城市热岛效应37年来显著增强.热岛强度以0.13℃/10年的速率加剧.热岛强度在2001年最强.分析三个地区1970-2006年的热岛强度时间演变,杭州地区最强、绍兴地区次之、宁波地区最弱;(2)杭州地区、绍兴地区、宁波地区热岛强度与人口的关系模型,显示相关系数分别为0.8695、0.8366、0.9287,表明城市热岛强度变化与城市人口变化呈线性正相关关系;(3)三个地区城市热岛强度的空间特征表明,绍兴地区的热岛强度明显强于其他两个地区,杭州地区次之,宁波地区最弱.
이용1970-2006년적상규기상참온도관측수거화Landsat-5 TM영상,선취항주만삼개지구구유대표성적성시참화향촌참,근거량도온도계산모형반연삼개연구구역적량도온도,연구항주만지구성시열도효응37년래시간연변특정화공간분포특정.결과표명:(1)항주만지구성시열도효응37년래현저증강.열도강도이0.13℃/10년적속솔가극.열도강도재2001년최강.분석삼개지구1970-2006년적열도강도시간연변,항주지구최강、소흥지구차지、저파지구최약;(2)항주지구、소흥지구、저파지구열도강도여인구적관계모형,현시상관계수분별위0.8695、0.8366、0.9287,표명성시열도강도변화여성시인구변화정선성정상관관계;(3)삼개지구성시열도강도적공간특정표명,소흥지구적열도강도명현강우기타량개지구,항주지구차지,저파지구최약.
Using observational temperature data of the normal weather station form 1970 to 2006 and Landsat-5 TM image,choosing the representative urban stations and rural stations,in accordance with the brightness temperature computing model,the brightness temperature was retrieved in the Hangzhou Bay area. The urban heat island(UHI) effect temporal variation characteristics during 37 years and spatial distribution were studied. The conclusion can be drawn as following: (1)The UHI effect enhanced remarkably in the Hangzhou Bay during discussing time,and the UHI intensity had been intensified at a ratio of 0.13℃ per 10 years. In 2001 ,the UHI intensity reached the maximum. Comparing with three area UHI intensity form 1970 to 2006,it was the strongest in Hangzhou area,followed by Shaoxing area,and the weakest in Ningbo area. (2)The relationship models between the UHI intensify and population were established in Hangzhou area, Shaoxing area and Ningbo area. The correlation coefficients were 0.8695,0.8366, and 0.9287 respectively. The variation of the UHI intensity and the population changes were creditably correlated. (3) The UHI intensity spatial characteristics showed that the UHI intensify in Shaoxing area was stronger than another study area,followed by Hangzhou area,next to Ningbo area.