Results 91 to 100 of about 1,742,349 (404)
The hydrologic behavior of agricultural watersheds
Eos, Transactions American Geophysical Union, 1944 During the past decade there has been much discussion, pro and con, with regard to the effects of agricultural operations upon the amount and regimen of runoff from watersheds. The problem becomes highly involved on large watersheds, because they are made up of various complexes of soil, cover, topography, and other edaphic features.
openaire +2 more sources
Applied Economic Perspectives and Policy, EarlyView.Abstract Extreme weather events are worsening the fragile rural infrastructure in the United States, impacting trade flows of agricultural products. The Mississippi River, vital for transporting agricultural commodities, reached historic lows during the 2022 and 2023 fall harvests, increasing transportation costs and lowering crop prices.
James L. Mitchell, Hunter D. Biram
wiley +1 more source
A weather generator for hydrological, ecological, and agricultural applications [PDF]
Water Resources Research, 2007 This paper presents a weather generator that allows simulation of hydrometeorological variables representative of a given geographic location: precipitation, total cloud cover, incoming shortwave radiation, air temperature, humidity, and wind speed. The approach captures the essential relationships among the quantities of interest, while modeling the ...
Valeriy Y. Ivanov +4 more
openaire +3 more sources
Hidden costs of La Mancha's production model and drivers of change [PDF]
arXiv, 2022 The territory of La Mancha, its rural areas, and its landscapes suffer a kind of atherosclerosis ("the silent killer") because of the increase in artificial surfaces, the fragmentation of the countryside by various infrastructures, the abandonment of small and medium-sized farms and the loss of agricultural, material, and intangible heritage.
arxiv
Automated Detection of Hillforts in Remote Sensing Imagery With Deep Multimodal Segmentation
Archaeological Prospection, EarlyView.ABSTRACT Recent advancements in remote sensing and artificial intelligence can potentially revolutionize the automated detection of archaeological sites. However, the challenging task of interpreting remote sensing imagery combined with the intricate shapes of archaeological sites can hinder the performance of computer vision systems.
Daniel Canedo +7 more
wiley +1 more source
Footprint Characteristics Revised for Field-Scale Soil Moisture Monitoring with Cosmic-Ray Neutrons [PDF]
Water Resources Research, 51, 5772-5790 (2015), 2016 Cosmic-ray neutron probes are widely used to monitor environmental water content near the surface. The method averages over tens of hectares and is unrivaled in serving representative data for agriculture and hydrological models at the hectometer scale. Recent experiments, however, indicate that the sensor response to environmental heterogeneity is not
arxiv +1 more source
Hydrological drought insurance for irrigated agriculture in southern Spain
Agricultural Water Management, 2020 Embargado hasta 01/10/2022 In Mediterranean-climate regions, irrigated agriculture is especially vulnerable to the risk of hydrological drought, and irrigators are particularly concerned about the negative effects of water supply failures. This paper proposes a new index-based drought insurance scheme to cover the risk of water supply failures in ...
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Long-Term Drought Trends in Ethiopia with Implications for Dryland Agriculture
Water, 2019 Intraseason and seasonal drought trends in Ethiopia were studied using a suite of drought indicators—standardized precipitation index (SPI), standardized precipitation evapotranspiration index (SPEI), Palmer drought severity index (PDSI) and Z-index for ...
Dawd Temam +4 more
semanticscholar +1 more source
Water balance components of the potential agricultural grabens along the Rift Valley in northern Ethiopia [PDF]
, 2019 Region: Ethiopia's Rift Valley. Focus: matching agricultural water demand and supply is a growing policy challenge in drylands. We investigated the water balance components in Raya (3507 km(2)) and Ashenge (80.5 km(2)) grabens. The rainfall depth, river
Annys, Sofie +12 more
core +3 more sources
Applied Stochastic Models in Business and Industry, EarlyView.ABSTRACT Numerical models are essential for comprehending intricate physical phenomena in different domains. To handle their complexity, sensitivity analysis, particularly screening is crucial for identifying influential input parameters. Kernel‐based methods, such as the Hilbert‐Schmidt Independence Criterion (HSIC), are valuable for analyzing ...
Guerlain Lambert +2 more
wiley +1 more source