Results 71 to 80 of about 24,488,859 (359)

Integration of a Parsimonious Hydrological Model with Recurrent Neural Networks for Improved Streamflow Forecasting

Water, 2018
This study applied a GR4J model in the Xiangjiang and Qujiang River basins for rainfall-runoff simulation. Four recurrent neural networks (RNNs)—the Elman recurrent neural network (ERNN), echo state network (ESN), nonlinear autoregressive exogenous ...
Ye Tian, Yue‐Ping Xu, Zongliang Yang, Guoqing Wang, Qian Zhu   +4 more
semanticscholar   +1 more source

Correcting Apparent Priming Bias Unveils Fertilizer Nitrogen‐Risk Archetypes of Surplus and Depletion Across Asian Rice Systems

Advanced Science, EarlyView.
Correcting the apparent priming effect resolves systematic biases in Asian rice fertilizer nitrogen accounting. Net soil retention drops below 7%, while 48% of fertilizer escapes, inflicting US$98.53 billion in annual reactive‐nitrogen damages. High‐resolution mapping uncovers N‐risk archetypes across 42% of the rice area, delivering a spatially ...
Xiuyun Liu, Siyuan Cai, Longlong Xia, Jagdish K. Ladha, Xiaoyuan Yan, Xu Zhao   +5 more
wiley   +1 more source

Assessment of ecologically relevant hydrological change in China due to water use and reservoirs [PDF]

, 2008
As China’s economy booms, increasing water use has significantly affected hydro-geomorphic processes and thus the ecology of surface waters. A large variety of hydrological changes arising from human activities such as reservoir construction and ...
Zhang, Jing, P. Döll, J. Zhang, Döll, Petra   +3 more
core   +1 more source

Hemp Cultivation and Crop Diversification: Implications for Ecosystem Services in Kentucky

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines the ecosystem benefits of expanding hemp cultivation by assessing its impact on crop diversity. Using scenario‐based simulations and fixed‐effect panel regressions with county‐level data in Kentucky, we find that increased hemp acreage tends to enhance crop diversity, improving water quality and bird diversity.
Yunsun Park, Seong D. Yun, Brandy E. Phipps, Tyler Mark, Craig Schluttenhofer   +4 more
wiley   +1 more source

On the colour and spin of epistemic error (and what we might do about it) [PDF]

, 2011
Disinformation as a result of epistemic error is an issue in hydrological modelling. In particular the way in which the colour in model residuals resulting from epistemic errors should be expected to be non-stationary means that it is difficult to ...
A. Wood, Wood, Andrew, Smith, P. J., Beven, Keith, Smith, Paul, P. J. Smith, Wood, A., K. Beven   +7 more
core   +1 more source

When the River Runs Low: Heterogeneous Impacts of Transportation Disruptions on Local Grain Basis

Agribusiness, EarlyView.
ABSTRACT A substantial share of U.S. soybean and corn exports from the Midwest moves by barge along the Mississippi River system to export terminals in the Louisiana Gulf. Transportation costs between Midwestern grain elevators and export terminals create a wedge between prices at these locations, and shocks to these costs are partially passed on to ...
Yuan Zhang, Andrew E. Anderson, Nicholas J. Pates, Eunchun Park   +3 more
wiley   +1 more source

Hydrologically complemented deterministic slope stability analysis in part of Indian Lesser Himalaya

Geomatics, Natural Hazards & Risk, 2016
This study uses a deterministic approach to evaluate the factor of safety (FS) of the terrain for different hydrological conditions, in part of Indian Lesser Himalaya. The results indicate sudden increase in the percentage unstable area from 7.5% to 13.8%
John Mathew, S. Kundu, K. Vinod Kumar, Charu C. Pant   +3 more
doaj   +1 more source

Key scientific issues of hydrological forecast in the headwater area of Yellow River

Shui kexue jinzhan, 2023
The hydrological forecast for the headwater area of Yellow River is of vital importance to the flood water resources utilization through optimal operation of cascade reservoirs over the Upper Yellow River such as Longyangxia and Liujiaxia, even to the ...
Bin YONG, Jianyun ZHANG, Guoqing WANG
doaj   +1 more source

Calibration of a large-scale hydrological model using satellite-based soil moisture and evapotranspiration products

, 2017
. A considerable number of river basins around the world lack sufficient ground observations of hydro-meteorological data for effective water resources assessment and management.
P. López, E. Sutanudjaja, J. Schellekens, G. Sterk, M. Bierkens   +4 more
semanticscholar   +1 more source

Evaluation of different sources of uncertainty in climate change impact research using a hydro-climatic model ensemble [PDF]

, 2012
The international research project QBic3 (Quebec-Bavarian Collaboration on Climate Change) aims at investigating the potential impacts of climate change on the hydrology of regional scale catchments in Southern Quebec (Canada) and Bavaria (Germany). Yet,
Caya, D., Gauvin St-Denis, B., Ludwig, Ralf, Muerth, Markus   +3 more
core   +1 more source