山地是我国自然资源的富集区与涵养地、生物多样性和人文多样性中心,还是自然灾害的多发区和全球变化的指示剂,广袤的山地不仅为遥感研究提供广阔的地理空间,也对实际应用提出了诸多科学和技术挑战。山地崎岖地形及浓缩的环境梯度显著影响了遥感成像过程,定量反演的建模在山区更加“病态”,且产品不确定性难以准确刻画,相关问题已逐渐成为遥感学科的难点、热点和焦点。近期成都山地所李爱农研究员带领团队围绕山地地表遥感辐射传输建模、关键地表参数遥感反演与验证以及山区遥感综合应用开展山地遥感学科建设,并取得系列研究创新进展。
全球山地分布
该团队提出了协同几何特征和特殊地理过程的山地遥感研究新范式,以此为主线,结合国内外最新进展,对山地遥感的相关研究做了阶段总结,新近出版了《山地遥感》专著,书中不仅考虑山地“崎岖地表”的几何形态,还结合山区实际研究对象的特殊时空格局和过程,从地理视角来阐述山地遥感理论、方法及其应用技术,凸显了学科特色。全书共12章,约90万字,内容兼顾了基础性和技术性,是国内外首部围绕山地复杂系统介绍遥感理论与实践的学术著作,为山地遥感学科建设铺垫了新的基石。
《山地遥感》封面
山地遥感作为研究在山地这一特定环境中的遥感基本原理、方法及其应用的科学技术,是遥感科学的重要组成部分,关注其山地特殊性。现阶段,研究内容主要包括:电磁波与山地地表相互作用机理及建模理论,山地遥感影像自动校正与时-空-谱归一化处理方法,山地地表信息遥感反演与同化方法,山地遥感尺度效应与算法/产品验证,山地遥感信息综合应用等。
近期,相关研究成果发表在Remote Sensing of Environment、IEEE Transactions on Geoscience and Remote Sensing、Agricultural and Forest Meteorology等领域国际TOP期刊上。
山区地形辐射校正模型结果对比
山地生态参量反演建模思路
最近,该研究团队还在《遥感学报》“中国遥感二十年特刊”上应邀发表综述,系统介绍了山地遥感主要研究进展、发展机遇与挑战。研究成果在《遥感技术与应用》已成功组织了两期“山地遥感”专栏。
解读《山地遥感》:http://mp.weixin.qq.com/s?__biz=MjM5MTIxNDMwOQ%3D%3D&idx=2&mid=2656080643&sn=d6c4602532bde1d0bf8c68d59d3aeaa6
《遥感学报》“中国遥感二十年特刊”之“山地遥感”:http://www.jors.cn/jrs/ch/reader/view_abstract.aspx?file_no=r16227&flag=1
《遥感技术与应用》山地遥感专栏链接1:http://www.rsta.ac.cn/CN/volumn/volumn_163.shtml
《遥感技术与应用》山地遥感专栏链接2:http://www.rsta.ac.cn/CN/volumn/volumn_165.shtml
新近代表性论文:
1) Yin Gaofei, Li Ainong*, Zhao Wei, Jin Huaan, Bian Jinhu, Wu Shengbiao. Modeling canopy reflectance over sloping terrain based on path length correction. IEEE Transactions on Geoscience and Remote Sensing, 2017, DOI: 10.1109/TGRS.2017.2694483. (IF = 3.360)
2) Bian Jinhu, Li Ainong*, Liu Qiannan, Huang Chengquan. Cloud and snow discrimination for CCD images of HJ-1A/B constellation based on spectral signature and spatio-temporal context.Remote Sensing, 2016, 8(1), 31. (IF = 3.036)
3) Li Ainong, Wang Qingfang, Bian Jinhu, Lei Guangbin. An improved physics-based model for topographic correction of Landsat TM images.Remote Sensing, 2015, 7(5): 6296-6319. (IF = 3.036)
4) Bian Jinhu, Li Ainong*, Wang Qingfang,Huang Chengquan. Development of dense time series 30-m image products from the Chinese HJ-1A/B constellation: A case study in Zoige plateau, China.Remote Sensing, 2015, 7(12): 16647-16671. (IF = 3.036)
5) Yin Gaofei, Li Ainong*, Jin Huaan, Zhao Wei, Bian Jinhu, Qu Yonghua, Zeng Yelu, Xu Baodong. Derivation of temporally continuous LAI reference maps through combining the LAINet observation system with CACAO.Agricultural and Forest Meteorology, 2017, 233: 209-221.(IF = 4.461)
6) Jin Huaan, Li Ainong*, Bian Jinhu, Nan Xi, Zhao Wei, Zhang Zhengjian, Yin Gaofei. Intercomparison and validation of MODIS and GLASS leaf area index (LAI) products over mountain areas: A case study in southwestern China.International Journal of Applied Earth Observation and Geoinformation, 2017, 55: 52-67. (IF = 3.798)
7) Zhao Wei, Li Ainong*, Jin Huaan, Zhang Zhengjian, Bian Jinhu, Yin Gaofei. Performance Evaluation of the Triangle-Based Empirical Soil Moisture Relationship Models Based on Landsat-5 TM Data and In Situ Measurements.IEEE Transactions on Geoscience and Remote Sensing, 2017, 55(5): 2632-2645. (IF = 3.360)
8) Jin Huaan, Li Ainong*, Wang Jindi*, Bo Yanchen. Improvement of spatially and temporally continuous crop leaf area index by integration of CERES-Maize model and MODIS data.European Journal of Agronomy, 2016, 78, 1-12. (IF = 3.186)
9) Zhao Wei, Li Ainong*, Nan Xi, Zhang Zhengjian, Lei Guangbin. Postearthquake Landslides Mapping From Landsat-8 Data for the 2015 Nepal Earthquake Using a Pixel-Based Change Detection Method.IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2017. (IF = 2.145)
10) Xia Haoming, Zhao Wei, Li Ainong*, Bian Jinhu, Zhang Zhengjian. Subpixel inundation mapping using Landsat-8 OLI and UAV data for a wetland region on the Zoige plateau, China.Remote Sensing, 2017, 9(1): 31. (IF =3.036)
11) Wang Jiyan, Li Ainong*, Bian Jinhu. Simulation of the grazing effects on grassland aboveground net primary production using DNDC model combined with time-series remote sensing data—A case study in Zoige plateau, China.Remote Sensing, 2016, 8(3), 168. (IF =3.036)
12) Lei Guangbin, Li Ainong*, Bian Jinhu, Zhang Zhengjian, Jin Huaan, Nan Xi, Zhao Wei, Wang Jiyan, Cao Xiaomin, Tan Jianbo, Liu Qiannan, Yu Huan, Yang Guangbin, Feng Wenlan. Land cover mapping in southwestern China using the HC-MMK approach.Remote Sensing, 2016, 8(4), 305. (IF =3.036)