title: [Characteristics of heat resource in mountainous region of northern Guangdong, South China based on three-dimensional climate observation].
abstract: Based on the 2009-2011 daily air temperature observation data from 11 automatic weather stations in the mountainous region of northern Guangdong, this paper calculated the heat factors in the region, including the beginning date of 10 degrees C, the ending date of 15 degrees C, the duration days of 10-15 degrees C, the accumulated temperature above 10 degrees C, the days of minimum temperature below 5 degrees C, and the mean monthly temperature, with the linear regression model of the heat factors and latitude established. In 2009-2011, the heat factors in the region had significant correlations with latitude, and the heat resource at the same latitudes differed apparently between south and north slopes. With the increase of latitude, the beginning date of 10 degrees C delayed, the ending date of 10 degrees C advanced, and the duration days of 10-15 degrees C, the accumulated temperature above 10 degrees C, the days of temperature above 10 degrees C, and the mean annual air temperature decreased. The vertical variation rates of the heat factors were larger on south slope than on north slope. The results of this study could be used for fitting the vertical distribution of heat resource in the areas with no weather station, and provide basis for the fine regionalization of agricultural climate.
authors.affiliation: Guangdong Climate Center, Guangzhou 510080, China. liuwei@grmc.gov.cn
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.affiliation: Guangdong Climate Center, Guangzhou 510080, China.
authors.forename: Chun-Lin
authors.initials: CL
authors.lastname: Wang
authors.affiliation: Guangdong Climate Center, Guangzhou 510080, China.
authors.forename: Xin-Guang
authors.initials: XG
authors.lastname: Chen
authors.affiliation: Guangdong Climate Center, Guangzhou 510080, China.
authors.forename: Hui-Hua
authors.initials: HH
authors.lastname: Chen
mesh_terms: D000383:Agriculture; D002681:China; D002980:Climate; D057231:Climate Change / Q000706:statistics & numerical data; D017753:Ecosystem; D004784:Environmental Monitoring; D006358:Hot Temperature; D013472:Sunlight