Results 251 to 260 of about 2,856,160 (294)

Drought monitoring in Slovakia

2023
The drought is much discussed phenomena in the latest years, because of its more frequent occurrence and the stronger intensity. For this reason, the monitoring of dry conditions is very important. The Slovak Hydrometeorological Institute (SHMI) monitors the meteorological and soil drought since 2015, and then in 2017, the monitoring of the surface ...
Ivana Krčová, Maroš Turňa, Lívia Labudová, Gabriela Ivaňáková, Jakub Ridzoň, Juraj Holec   +5 more
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A Workshop on Using NASA AIRS Data to Monitor Drought for the U.S. Drought Monitor

Bulletin of the American Meteorological Society, 2023
Recent studies indicate that drought indicators based on near-surface air relative humidity (RH), air temperature (T), and air vapor pressure deficit (VPD), derived from the Atmospheric Infrared Sounder (AIRS) instrument aboard NASA’s Aqua satellite can detect the onset of drought earlier than other drought indicators, specifically standardized ...
Farahmand,, Alireza, Ray, Sharon, Thrastarson, Heidar, Licata, Stephen, Granger, Stephanie, Fuchs, Brian   +5 more
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Intercomparison of Agricultural Drought Monitoring Products

2021 9th International Conference on Agro-Geoinformatics (Agro-Geoinformatics), 2021
Agricultural drought is a significant factor in impacting the agricultural yield. It is a big challenge to monitor agricultural drought as it is an abstract concept rather than a measurable variable. A lot of models are invented to capture the sign of its traces. The pros and cons of each product varies case by case.
Ziheng Sun, Liping Di
openaire   +1 more source

Drought Monitoring in Sub-Sahara Africa

IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020
Drought is one of the main natural hazards affecting the environment and economy of countries all over the world. Fusing weather data with satellite images therefore becomes a superior method of identifying and monitoring drought in a given region.
Fan Mou, Twum-Antwi Akwasi, Mujie Li, Mingcang Zhu, Yong He 0007, Zhanyong He, Yang Xiao, Juan Ren, Jun Xia 0001, Xiang Zhang 0002, Zezhong Zheng, Guoqing Zhou 0001   +11 more
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Drought monitoring using MODIS derived perpendicular drought indexes

2019 8th International Conference on Agro-Geoinformatics (Agro-Geoinformatics), 2019
Drought is one of the most complex natural hazards that can produce devastating impacts on many aspects, especially on agricultural production. Insufficient site observation data for drought monitoring makes remote sensing technique a key issue for global and regional drought assessment with high spatial and temporal resolutions.
Yuanyuan Chen, Li Sun, Kai Liu, Zhiyuan Pei   +3 more
openaire   +1 more source

Monitoring Drought in the West

Arid Land Research and Management, 2003
Although drought is difficult to define and measure, several indices are presently available to assist in rangeland monitoring and management. Several drought indices are noted with documentation where recent information may be easily found. Temporal and spatial considerations may be helpful in management applications.
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Advanced Cyberinfrastructure for Agricultural Drought Monitoring

2019 8th International Conference on Agro-Geoinformatics (Agro-Geoinformatics), 2019
Cyberinfrastructure plays an important role in the collection, management, and dissemination of drought information in agricultural activities, especially when the activities involve a variety of facilities, data sources, and communities. The challenge of coordinating tremendous sources of data and systems becomes paramount.
Ziheng Sun, Liping Di, Hui Fang, Liying Guo, Eugene Yu, Junmei Tang, Haoteng Zhao, Juozas Gaigalas, Chen Zhang 0014, Li Lin 0002, Zhiqi Yu, Shaobo Zhong, Xiaoping Wang, Xicheng Tan, Lili Jiang 0001, Zhongxin Chen, Zhanya Xu, Jie Sun 0029   +17 more
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Monitoring drought with GRACE data assimilation

2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016
Drought has a profound impact on agricultural, industrial and municipal water use as well as the eco-system. Thus, it is essential to have a monitoring system that detects various types of drought including that in groundwater which is often the only source of fresh water in many parts of the world.
Bailing Li, Matthew Rodell
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Building a hybrid drought monitor model based on U.S. Drought Monitor

Drought is one of the costliest natural disasters, capable of causing significant losses in agriculture, economy, and ecosystems. Different definitions of drought from multiple perspectives made drought research complicate. Exploring droughts from a comprehensive perspective improves our understanding of the evolution and drivers of drought, while ...
Haiting Xu, Jianhui Wei, Ying Pan
openaire   +1 more source

Monitoring Drought: An Evaluation of Meteorological Drought Indices

Geography Compass, 2009
Abstract A uniform method for defining, monitoring and quantifying the severity of drought conditions does not exist. This article introduces some of the tools (e.g. drought indices) that are commonly used in the United States to monitor meteorological drought, describes the strengths and weaknesses of these tools, and makes ...
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