东北地区积雪反照率特性

doi:10.7522/j.issn.1000-0240.2018.0410

冰川冻土 ›› 2019, Vol. 41 ›› Issue (3): 554-562.doi: 10.7522/j.issn.1000-0240.2018.0410

东北地区积雪反照率特性

刘豪^1,2,3, 肖鹏峰^1,2,3, 张学良^1,2,3, 冯学智^1,2,3, 杨永可^1,2,3, 胡瑞^1,2,3, 张正^1,2,3, 盛光伟^1,2,3

1. 南京大学地理与海洋科学学院地理信息科学系, 江苏南京 210023;
2. 卫星测绘技术与应用国家测绘地理信息局重点实验室, 江苏南京 210023;
3. 江苏省地理信息技术重点实验室, 江苏南京 210023

收稿日期:2018-07-12 修回日期:2018-09-11 出版日期:2019-06-25 发布日期:2019-09-10
通讯作者: 肖鹏峰,E-mail:xiaopf@nju.edu.cn,xiaopf@gmail.com. E-mail:xiaopf@nju.edu.cn,xiaopf@gmail.com
作者简介:刘豪(1995-),男,湖南邵阳人,2017年在中南林业科技大学获学士学位,现为南京大学在读硕士研究生,从事积雪遥感研究.E-mail:lhlhliu@gmail.com
基金资助:
国家科技基础资源调查专项（2017FY100502）；国家自然科学基金项目（41671344）资助

The characteristics of snow cover albedo in Northeast China

LIU Hao^1,2,3, XIAO Pengfeng^1,2,3, ZHANG Xueliang^1,2,3, FENG Xuezhi^1,2,3, YANG Yongke^1,2,3, HU Rui^1,2,3, ZHANG Zheng^1,2,3, SHENG Guangwei^1,2,3

1. Department of Geographical Information Science, School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China;
2. Key Laboratory for Satellite Mapping Technology and Applications of State Administration of Surveying, Mapping and Geoinformation of China, Nanjing 210023, China;
3. Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Nanjing 210023, China

Received:2018-07-12 Revised:2018-09-11 Online:2019-06-25 Published:2019-09-10

摘要/Abstract

摘要： 利用2017年12月至2018年3月在东北地区获取的82个观测点的积雪反照率数据，从积雪反照率的时序差异、空间特点、影响因素三个方面开展了积雪反照率时空特点研究。结果表明：（1）在时间上，随着积雪积累时间的增加，积雪反照率逐渐降低，最大下降速率为0.003 d^-1。（2）在空间上，积雪反照率在东西方向差异显著，大兴安岭东西两侧地区的积雪反照率均值分别为0.679和0.751；在同一地区内，积雪反照率在雪表层含水量、雪粒径等因素影响下也存在一定差异，大兴安岭西侧地区的积雪反照率北低南高，大兴安岭东侧地区的积雪反照率北高南低。（3）耕地上的农作物留茬对积雪反照率影响较大，短时间内天气变化对积雪反照率影响较小。

关键词: 东北地区, 积雪, 反照率, 时空差异

Abstract: Based on the snow albedo data from 82 observation points from December 2017 to March 2018 in Northeast China, the spatial and temporal characteristics of snow albedo were analyzed from time series difference, spatial characteristics and their impact factors in this paper. The results showed that:(1) temporally, the snow albedo gradually decreased with time with the maximum decline rate of 0.00.d^-1. (2) spatially, the snow albedo was significantly different between the west and the east, with an average snow albedo of 0.751 to the west of the Greater Khingan Range, and of 0.679 to the east of the Greater Khingan Range; at the same area, the snow albedo had some differences due to the influences of water content and snow grain; snow albedo to the west of the Greater Khingan Range exhibited low in the north and high in the south, the albedo to the east of the Greater Khingan Range exhibed high in the north and low in the south. (3) the stubble of cropland had a greater effect on snow albedo; the impact of weather change had less effect on snow albedo in a short period of time.

Key words: Northeast China, snow cover, albedo, spatial-temporal differences

中图分类号:

P468.0+25

刘豪, 肖鹏峰, 张学良, 冯学智, 杨永可, 胡瑞, 张正, 盛光伟. 东北地区积雪反照率特性[J]. 冰川冻土, 2019, 41(3): 554-562.

LIU Hao, XIAO Pengfeng, ZHANG Xueliang, FENG Xuezhi, YANG Yongke, HU Rui, ZHANG Zheng, SHENG Guangwei. The characteristics of snow cover albedo in Northeast China[J]. Journal of Glaciology and Geocryology, 2019, 41(3): 554-562.

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东北地区积雪反照率特性

The characteristics of snow cover albedo in Northeast China

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