Results 81 to 90 of about 2,761 (197)

Land Surface Feedbacks Regulate Atmospheric Water Demand and Maintain Global Drying Stability

open access: yesWater Resources Research, Volume 62, Issue 8, August 2026.
Abstract Atmospheric aridity is widely projected to intensify under climate warming, driven by rapidly increasing atmospheric water demand, as reflected in potential evaporation (PE). Yet global trends in precipitation, runoff, and vegetation productivity reveal a contrasting pattern of enhanced water fluxes and widespread greening, known as the ...
Ziwei Liu   +4 more
wiley   +1 more source

Coeficiente de cultura da alface hidropônica baseado no conceito de graus-dia

open access: yesRevista Ceres, 2010
O objetivo principal deste trabalho foi propor a adoção de um coeficiente de cultura térmico, com a aplicação do conceito de graus-dia acumulados após o transplantio, para estimativa da evapotranspiração diária (ETc) dos cultivares de alface Grand Rapids,
Carlos Roberto Weide Moura   +3 more
doaj   +1 more source

Are Modern Droughts Unprecedented?

open access: yesAGU Advances, Volume 7, Issue 5, August 2026.
Abstract Global drought variability of past centuries remains poorly understood due to sparse instrumental records and limited paleoclimate reconstructions. Yet, quantifying long‐term forced and unforced variability is key for assessing the extremeness of modern (2000–2024) drought events.
Patricia Helpap   +5 more
wiley   +1 more source

A GRACE/‐FO‐Based Framework for Improved Reproduction of Water‐Balance‐Constrained Evapotranspiration Across Hydroclimatic Regimes

open access: yesEarth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Diagnosing monthly evapotranspiration (ET) under water‐balance constraints is essential for understanding land‐atmosphere interactions and managing water resources under changing climate conditions. Since 2002, the Gravity Recovery and Climate Experiment (GRACE) and its successor GRACE Follow‐On (GRACE/‐FO) missions have provided precise ...
Xiaolong Li   +4 more
wiley   +1 more source

Grain Expansion in China's Drylands Secures Food but Intensifies Environmental Trade‐Offs

open access: yesEarth's Future, Volume 14, Issue 8, August 2026.
Abstract Drylands are increasingly crucial for global food supply, and grain cultivation there continues to expand. Newly cultivated croplands in these regions are often assumed to be biophysically marginal and low yielding. However, the food‐security benefits, environmental costs, and associated trade‐offs of this expansion remain insufficiently ...
Fengyu Fu   +8 more
wiley   +1 more source

A Comparison of ASCE and FAO56 Reference Evapotranspiration at Different Subdaily Timescales: a Numerical Study

open access: yesمجله آب و خاک, 2017
Introduction: Subdaily estimates of reference evapotranspiration (ETo) are needed in many applications such as dynamic agro-hydrological modeling. The ASCE and FAO56 Penman–Monteith models (ASCE-PM and FAO56-PM, respectively) has received favorable ...
Farzin Parchami-Araghi   +3 more
doaj   +1 more source

SENSITIVITY ANALYSIS OF A FAO PENMAN MONTEITH FOR POTENTIAL EVAPOTRANSPIRATION TO CLIMATE CHANGE

open access: yesJurnal Teknologi, 2017
Sensitivity of the FAO Penman-Monteith (FPM) potential evapotranspiration (PET) model under tropical climates has been studied in the present study. A total of 17 meteorological stations covering Peninsular Malaysia starting from 1987-2003 were used as model inputs. A sensitivity analysis (SA) was carried out using the graphical method for temperature,
Ahmad, N. F. A.   +4 more
openaire   +2 more sources

Diagnosing Cryospheric Runoff Dynamics: A Distributed Differentiable Hydrological Model With Global Transfer Learning

open access: yesWater Resources Research, Volume 62, Issue 8, August 2026.
Abstract Accurate hydrological prediction in alpine regions remains challenging due to complex cryospheric processes and limited observational records. Traditional hydrological models are often subject to structural uncertainty, whereas purely data‐driven deep learning (DL) models may lack physical interpretability under non‐stationary climate ...
Jun Mei   +7 more
wiley   +1 more source

Performance of methods for estimation of table beet water requirement in Alagoas

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental
Optimization of water use in agriculture is fundamental, particularly in regions where water scarcity is intense, requiring the adoption of technologies that promote increased irrigation efficiency.
Daniella P. dos Santos   +4 more
doaj   +1 more source

Estimation of Crop Evapotranspiration by Means of the Penman-Monteith Equation

open access: yes, 1991
This study evaluated the potential of using simple, semi-empirical resistance models for the direct estimation of crop evapotranspiration as an alternative to the traditional approach involving a reference equation and a crop coefficient. It consisted of three major parts. The first part originally aimed at the development of simple expressions for the
openaire   +2 more sources

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