Results 1 to 10 of about 5,083 (261)

Version 3 of the Global Aridity Index and Potential Evapotranspiration Database. [PDF]

Sci Data, 2022
AbstractThe “Global Aridity Index and Potential Evapotranspiration Database - Version 3” (Global-AI_PET_v3) provides high-resolution (30 arc-seconds) global hydro-climatic data averaged (1970–2000) monthly and yearly, based upon the FAO Penman-Monteith Reference Evapotranspiration (ET0) equation.
Zomer RJ, Xu J, Trabucco A.
europepmc   +4 more sources

A global drought-aridity index: The spatiotemporal standardized precipitation evapotranspiration index

Ecological Indicators, 2023
Climate change has increased the risk of drought in both arid and non-arid regions of the globe. Therefore, in order to monitor and evaluate global drought and aridity, based on the principle of standardized precipitation evapotranspiration index (SPEI),
Hang Yu, Long Wang, Jianlong Zhang, Yuanfang Chen   +3 more
doaj   +2 more sources

Satellite-derived aridity index reveals China's drying in recent two decades. [PDF]

iScience, 2023
The expansion of dryland has caused a huge impact on the natural environment and human society. Aridity index (AI) can effectively reflect the degree of dryness, but spatiotemporally continuous estimation of AI is still challenging. In this study, we develop an ensemble learning algorithm to retrieve AIs from MODIS satellite data in China from 2003 to ...
Yao L, Lu J, Jiang H, Liu T, Qin J, Zhou C.   +5 more
europepmc   +4 more sources

Forestry Aridity Index in Vojvodina, North Serbia [PDF]

Open Geosciences, 2019
In investigating aridity in Vojvodina (a region in the northern part of Serbia), the Forestry Aridity Index (FAI) was used. This index was chosen due to being one of the most suitable indices for the analysis of the interaction of climate and vegetative ...
Gavrilov Milivoj B., Lukić Tin, Janc Natalija, Basarin Biljana, Marković Slobodan B.   +4 more
doaj   +2 more sources

The aridity Index under global warming

Environmental Research Letters, 2019
Aridity is a complex concept that ideally requires a comprehensive assessment of hydroclimatological and hydroecological variables to fully understand anticipated changes. A widely used (offline) impact model to assess projected changes in aridity is the
P Greve, M L Roderick, A M Ukkola, Y Wada   +3 more
doaj   +3 more sources

Increasing constraint of aridity on tree intrinsic water use efficiency [PDF]

Nature Communications
The intrinsic water use efficiency (W) of trees serves as a key variable linking water and carbon fluxes in forest ecosystems. Interannual variations in aridity (e.g., represented by the Standardized Precipitation Evapotranspiration Index, SPEI) can ...
Mengjie Wang, Shushi Peng, Zihan Lu, Xiangtao Xu, Andrew Felton, Anping Chen   +5 more
doaj   +2 more sources

Runoff variation and progressive aridity during drought in catchments in southern-central Chile

Hydrology Research, 2023
Persistent drought events frequently intensify the aridity of ecosystems and cause catchment runoff depletion. Here, using large and long-term data sets of meteorological and hydrologic variables (precipitation, runoff, temperature, and potential ...
Guillermo Barrientos, Rafael Rubilar, Efrain Duarte, Alberto Paredes   +3 more
doaj   +1 more source

Linking reported drought impacts with drought indices, water scarcity and aridity: the case of Kenya [PDF]

Natural Hazards and Earth System Sciences, 2023
The relation between drought severity and drought impacts is complex and relatively unexplored in the African continent. This study assesses the relation between reported drought impacts, drought indices, water scarcity and aridity across several ...
M. R. Lam, M. R. Lam, A. Matanó, A. F. Van Loon, R. A. Odongo, A. D. Teklesadik, C. N. Wamucii, M. J. C. van den Homberg, S. Waruru, A. J. Teuling   +9 more
doaj   +1 more source

A stable isotope aridity index for terrestrial environments [PDF]

Proceedings of the National Academy of Sciences, 2006
We use the oxygen isotopic composition of tooth enamel from multiple mammalian taxa across eastern Africa to present a proxy for aridity. Here we report tooth enamel δ 18 O values of 14 species from 18 locations and classify them according to their isotopic sensitivity to environmental aridity.
Naomi E, Levin, Thure E, Cerling, Benjamin H, Passey, John M, Harris, James R, Ehleringer   +4 more
openaire   +2 more sources

A Practical Satellite-Derived Vegetation Drought Index for Arid and Semi-Arid Grassland Drought Monitoring [PDF]

Remote Sensing, 2021
In semi-arid pasture areas, drought may directly influence livestock production, cause economic losses, and accelerate the processes of desertification along with destructive human activities (i.e., overgrazing). The aim of this article is to analyze the disadvantages of several drought indices derived from remote sensing data and develop a new ...
Sheng Chang, Hong Chen, Bingfang Wu, Elbegjargal Nasanbat, Nana Yan, Bulgan Davdai   +5 more
openaire   +2 more sources