Results 31 to 40 of about 1,943,084 (299)

Low Latency Global Carbon Budget Reveals Late 2024 Carbon Losses and Contrasting Early 2025 Land Sink Recovery Signals

Advanced Science, EarlyView.
Low latency carbon budget estimates for July 2024–June 2025 combine atmospheric CO2 growth rates, fossil emissions, ocean uptake, DGVM land fluxes, and OCO‐2 inversions. The budget shows that late‐2024 land carbon losses dominate the annual anomaly, while early‐2025 recovery differs between bottom‐up models and top‐down inversions, especially in ...
Piyu Ke, Philippe Ciais, Yitong Yao, Stephen Sitch, Wei Li, Xiaomeng Du, Xiaofan Gui, Ben Poulter, Thomas Colligan, Auke M. van der Woude, Joram Hooghiem, Wouter Peters, Zhu Liu, Zhu Deng, Zhe Jin, Xiangjun Tian, Yilong Wang, Junjie Liu, Sudhanshu Pandey, Chris O'Dell, Jiang Bian, John Miller, Xin Lan, Jefferson Goncalves De Souza, Michael O'Sullivan, Pierre Friedlingstein, Julien Alléon, Yi Xi, Daniel S. Goll, Lei Zhu, Guido R. van der Werf, Shilong Piao, Frédéric Chevallier   +32 more
wiley   +1 more source

Effects of tributary inflows on unsteady flow hysteresis and hydrodynamics in the mainstream

Hydrology Research
Flooding propagation is a crucial aspect of hydrological monitoring and forecasting. Previous studies have focused on hysteresis in the rating curve, caused by energy loss during flood propagation.
Hongwu Tang, Kang Chen, Saiyu Yuan, Lei Xu, Jiajian Qiu, Qingwei Lin, Carlo Gualtieri   +6 more
doaj   +1 more source

The coupled ocean–atmosphere hydrologic cycle

Tellus: Series A, Dynamic Meteorology and Oceanography, 2019
The freshwater cycle has in the present study been traced as one integrated process in the coupled ocean–atmosphere system for both present and possible future climates simulated with an Earth-System Model.
Dipanjan Dey, Kristofer Döös
doaj   +1 more source

Causal analysis of trade loss from pathogens: A global study of foot and mouth disease impacts on meat exports

American Journal of Agricultural Economics, EarlyView.
Abstract Our general interest is in global trade loss from livestock pathogens, specifically exports. We adopt a causal inference approach that considers animal disease outbreaks over time as non‐staggered binary treatments with the potential for switching in (infection) and out of treatment (recovery) within the sample period. The outcome evolution of
Mohammad Maksudur Rahman, Thomas L. Marsh   +1 more
wiley   +1 more source

ISGS - the hydrologic cycle

, 2022
Hydrogeology | Hydrogeology Section | Hydrogeology Staff The Hydrologic Cycle The vast and complex circulation of water between the earth and the atmosphere is called the hydrologic cycle. The cycle works this way: Precipitation falls from the atmosphere
Illinois State Geological Survey;
core  

Seeds of change: The impact of Ethiopia's direct seed marketing approach on smallholders' seed purchases and productivity

American Journal of Agricultural Economics, EarlyView.
Abstract While multiple factors explain low adoption rates of improved varieties by small‐scale farmers in sub‐Saharan Africa, a key supply‐side constraint is the limited availability of seed embodying new traits in the volume, quality, price, and timeliness required by farmers. This constraint is partly attributable to classical failures in the market
Dawit Mekonnen, Gashaw T. Abate, Seid Yimam, Rui Benfica, David J. Spielman, Frank Place   +5 more
wiley   +1 more source

Revegetation impacts on the flow characteristics in the Loess Plateau

Journal of Hydrology: Regional Studies
Study region: Loess Plateau, China. Study focus: Revegetation has been one of the most effective nature-based solution for carbon sequestration. However, its impacts on local water resources vary across places, and is especially controversial in arid ...
Sheng Ye, Jingkai Wang, Jiyu Li, Yifan Chai, Shihan Dai, Feng Wang, Qihua Ran   +6 more
doaj   +1 more source

Investigating lake-area dynamics across a permafrost-thaw spectrum using airborne electromagnetic surveys and remote sensing time-series data in Yukon Flats, Alaska

Environmental Research Letters, 2019
Lakes in boreal lowlands cycle carbon and supply an important source of freshwater for wildlife and migratory waterfowl. The abundance and distribution of these lakes are supported, in part, by permafrost distribution, which is subject to change ...
David M Rey, Michelle Walvoord, Burke Minsley, Jennifer Rover, Kamini Singha   +4 more
doaj   +1 more source

Aerosols, Climate, and the Hydrological Cycle [PDF]

Science, 2001
Human activities are releasing tiny particles (aerosols) into the atmosphere. These human-made aerosols enhance scattering and absorption of solar radiation. They also produce brighter clouds that are less efficient at releasing precipitation. These in turn lead to large reductions in the amount of solar irradiance reaching Earth's surface, a ...
V, Ramanathan, P J, Crutzen, J T, Kiehl, D, Rosenfeld   +3 more
openaire   +2 more sources

Climate change and perennial crop production: Evidence of yield impact and adaptation in California

American Journal of Agricultural Economics, EarlyView.
Abstract Perennial crops are economically important. They contribute to food security, providing essential nutrients that are often lacking in annual crops, and provide additional environmental benefits compared with annual crops. Despite their importance, empirical research on the impacts of climate change and adaptation on perennial crops remains ...
Yuanyuan Wen, Wei Zhang, Julian M. Alston   +2 more
wiley   +1 more source