Zobrazeno 1 - 10
of 697
pro vyhledávání: '"vegetation optical depth"'
Autor:
Jiaqi Zhang, Tianjie Zhao, Shurun Tan, Nemesio Rodriguez-Fernandez, Huazhu Xue, Na Yang, Yann Kerr, Jiancheng Shi
Publikováno v:
Geo-spatial Information Science, Vol 27, Iss 3, Pp 744-760 (2024)
The two vegetation transfer parameters of [Formula: see text] (Vegetation Optical Depth,VOD) and [Formula: see text] (Omega) could vary significantly across microwave channels in terms of frequencies, polarizations, and incidence angles, and their ch
Externí odkaz:
https://doaj.org/article/458ae538721e4a82886ce03d6c2a4586
Autor:
Junjun Cao, Yi Luo, Xiang Zhang, Lei Fan, Jianbin Tao, Won-Ho Nam, Chanyang Sur, Yuqi He, Aminjon Gulakhmadov, Dev Niyogi
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 132, Iss , Pp 104072- (2024)
Agricultural drought is a major natural disaster affecting biomass accumulation and causing food loss, exacerbated by the increasing frequency of flash droughts and compounded drought-heatwave events. Traditional optical remote sensing indices cannot
Externí odkaz:
https://doaj.org/article/13ac939a6914463da8767337fc7dbd98
Autor:
Andrew F. Feldman
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 14, Pp n/a-n/a (2024)
Abstract Satellite‐retrieved vegetation optical depth (VOD) has provided extensive insights into global plant function (such as, carbon stocks, water stress, crop yields) because of VOD's ability to monitor plant water stress and biomass at near da
Externí odkaz:
https://doaj.org/article/82ed5f92d0da496c936d452d6b238de8
Autor:
Lana L. Blaschke, Da Nian, Sebastian Bathiany, Maya Ben‐Yami, Taylor Smith, Chris A. Boulton, Niklas Boers
Publikováno v:
Earth's Future, Vol 12, Iss 7, Pp n/a-n/a (2024)
Abstract The Amazon rainforest (ARF) is threatened by deforestation and climate change, which could trigger a regime shift to a savanna‐like state. Whilst previous work has suggested that forest resilience has declined in recent decades, that work
Externí odkaz:
https://doaj.org/article/15e2ecc85ce2427191081726a4a41f16
Autor:
Zhongbing Chang, Lei Fan, Jean-Pierre Wigneron, Ying-Ping Wang, Xiaojun Li, Mengjia Wang, Xiangzhuo Liu, Huan Wang, Tianxiang Cui, Ling Yu, Jianping Wu, Xin Xiong, Shuo Zhang, Xuli Tang, Junhua Yan
Publikováno v:
Geo-spatial Information Science, Pp 1-16 (2024)
The microwave-derived vegetation optical depth (VOD) products were used to monitor aboveground biomass (AGB) at regional to global scales, but the ability of VOD to monitor AGB in China is uncertain. This study evaluated the sensitivity of four VOD p
Externí odkaz:
https://doaj.org/article/d4686fcd19204f278571ec5f24edab84
Autor:
Kyeungwoo Cho, Robinson Negron-Juarez, Andreas Colliander, Eric G. Cosio, Norma Salinas, Alessandro de Araujo, Jefferey Q. Chambers, Jingfeng Wang
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 8724-8736 (2024)
Soil moisture (SM) is crucial for the Earth's ecosystem, impacting climate and vegetation health. Obtaining in situ observations of SM is labor-intensive and complex, particularly in remote and densely vegetated regions like the Amazon rainforest. NA
Externí odkaz:
https://doaj.org/article/e6b96d9f833148f0845042da30b45088
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 5093-5105 (2024)
In this study, we conducted an empirical investigation on mobile global navigation satellite system (GNSS) transmissometry (GNSS-T) measurements to explore vegetation optical depth (VOD). Our approach involved using a dual-receiver setup, with one re
Externí odkaz:
https://doaj.org/article/6b6c6d7952d846389b53aba2c15d5cf9
Autor:
Shiyu Zhong, Lei Fan, Gabrielle De Lannoy, Frédéric Frappart, Jiangyuan Zeng, Mariette Vreugdenhil, Jian Peng, Xiangzhuo Liu, Zanpin Xing, Mengjia Wang, Xiaojun Li, Huan Wang, Jean-Pierre Wigneron
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 130, Iss , Pp 103910- (2024)
Vegetation Optical Depth (VOD), a vegetation parameter that quantifies the extinction effect of microwaves penetrating the canopy, plays a crucial role in global-scale biomass monitoring and climate change research. However, the spatial gridding of e
Externí odkaz:
https://doaj.org/article/8cdf2a4455d640a091af7d29d0d6ccbd
Autor:
Amir Mustofa Irawan, Mercè Vall-llossera, Carlos López-Martínez, Adriano Camps, David Chaparro, Gerard Portal, Miriam Pablos, Alberto Alonso-González
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 128, Iss , Pp 103720- (2024)
Understanding the key variables that characterise fire propagation is important for a better estimation of fire events and their impacts. This study uses machine learning combined with satellite remote sensing and atmospheric modelled data to enhance
Externí odkaz:
https://doaj.org/article/9212b67d737c49c9a30bf006de45c6b0
Autor:
Xingyi Wang, Jiaxin Jin
Publikováno v:
Remote Sensing, Vol 16, Iss 15, p 2777 (2024)
Against the backdrop of global warming and vegetation restoration, research on the evapotranspiration mechanism of the Yellow River basin has become a hot topic. The Budyko-Fu model is widely used to estimate basin-scale evapotranspiration, and its c
Externí odkaz:
https://doaj.org/article/0d70c1cfaf23496aabf2af0df52a3f30