Analysis Of Typical Urban Climate Characteristics Based On Outdoor Thermal Comfort Control

In the outdoor environment of cities,thermal comfort of human body is closely related with urban climate.Landscape architecture microclimate is the important factor of urban climate adjustment.The study on it mainly focuses on a certain time session of summer and winter in terms of time and concentrates on the local microenvironment of individual cities in terms of location,but it lacks the comparison between different cities and the study on different seasons and climate types.For the above mentioned problems,this paper conducted study work from three aspects.To begin with,the paper constructs the typical urban climate characteristics type analysis method based on outdoor environment thermal comfort adjustment.It selected10 cities with typical climate characteristics as the study object,took the actual measured hourly data in the ground meteorological station from 2016 to 2018 as the main data source and the corresponding weather situation and sunrise and sunset time as the auxiliary data source.Different combinations between air temperature and relative humidity would develop different thermal sensation types.Uncomfortable type is the target for outdoor environment thermal comfort adjustment.Solar radiation and wind are important approaches in adjusting thermal comfort of outdoor environment.It explored the analysis methods of typical urban climate characteristics types and analyzed characteristics and thermal sensation types from three dimensions of season,climate and time session.(Chapter 3)Then,the paper analyzed the typical urban climate characteristics types.On the basis of season type division based on thermal comfort adjustment,it selected the climate season classification methods closely related with phenology.Based on the hot summer and cold winter type with four distinctive seasons,long summer without winter with indistinctive seasons,long winter without summer and spring all the year round,it analyzed the seasonal characteristics and thermal sensation types of typical cities,summarized uncomfortable types to be adjusted and concluded seasons and time sessions which need thermal comfort adjustment.(Chapter 4).In the end,the paper analyzed typical urban climate characteristics types.Four climate types based on thermal comfort adjustment of outdoor environment were classified on the basis of solar radiation and precipitation status,including “sunny”,“cloudy”,“rainy” and “snowy”.“Sunny” represents the climate type with solar radiation;“cloudy” represents the climate type without solar radiation or rainfall;“rainy” and“snowy” are climate types without solar radiation and with rainfall or snowfall.“Sunny”is the sole climate type affected by solar radiation,being the focus of thermal comfort adjustment.Different cities have different climate types.Microclimate adjustment shall take the influences of climate type into consideration.Different climate types shall have different thermal sensation types and thermal comfort adjustment approaches.(Chapter5)As the fundamental theory study of landscape architecture microclimate subject,the analysis data of typical urban outdoor environment climate characteristics and summarized conclusions could provide theoretical basis and data support for raising the target of landscape architecture microclimate adjustment and the lean tools of meteorological data.