搜索结果: 1-15 共查到“知识库 水文气象学”相关记录393条 . 查询时间(4.703 秒)
中亚地处欧亚大陆腹地，远离海洋，加之温度变化剧烈，已成为显著的干旱区之一。研究中亚地质历史时期以来的水文气候变化尤为重要，这有助于了解中亚的水文变化历史，并为在全球变暖背景下预测这一地区未来降水趋势提供参考。已有较多关于中亚全新世湿度重建的成果，而多数中亚全新世水文气候记录均来自中亚东部的我国新疆地区。这一区域目前的降水集中在夏半年，与中亚西部地区目前的冬半年降水模式形成对比。这引发了诸如降水季节...
AAS: 陆面水文过程模拟主要影响因子研究（图）
陆面 水文过程模拟 影响因子
2023/2/13
陆面过程模式广泛应用于获取陆面水文变量信息，但模式参数化方案、气象强迫和地表参数等不确定性导致陆面水文过程模拟仍存在较大偏差。来自怀化学院数学与计算科学学院、美国德克萨斯大学、中科院大气所、中国气象局的联合研究团队，利用多种模式参数化方案、气象强迫和地表参数开展了陆面水文过程集合模拟试验，通过与观测对比分析，揭示了影响中国区域土壤湿度、蒸散发和雪深等陆面水文要素模拟的主要因子，对增强水文过程理解、...
使用水文模型进行气候变化对水文水资源的影响评估时,通常假定水文模型参数在历史和未来时期是固定不变的,并未区分水文模型参数受环境变化的影响差异。针对该问题,采用集对分析法以年降水量和年径流量为依据进行丰、平、枯水年的划分,利用SWAT分布式水文模型分别率定不同水平年的模型参数,探究月尺度模型参数的非稳定性对年际年内径流的影响。
澜沧江源区气温与降水对径流变化的影响
澜沧江源区 径流变化 气温 降水
2020/10/22
为研究澜沧江源区水文气候变化特征,采用线性回归拟合分析方法、M-K非参数检验法对1960—2010年间澜沧江源区的水文气候变化趋势进行分析,计算了各季节气温变化对年气温变化的贡献量,并基于Pearson相关分析法和贡献率的计算讨论了降水量和气温对径流量变化的影响。
Intense events of rainfalls in Piemonte
precipitation intense events inorganic particulate matter
2015/9/16
The possibility of studying the precipitations recorded in a large number of meteorological stations in Piemonte
led us to analyse what has happened in the last century. A comparison between periods ...
Detection of meteorological inconsistencies by GPS
GPS double difference zenith totaldelay residuals
2015/9/16
GPS observations, distances from satellites to receivers and meteorological conditions in neutral atmosphere are known to obey a constraint, which provides a residual or in other words a quality index...
SWAMP GIS: A spatial decision support system for predicting and treating stormwater runoff
Stormwater runoff decision support
2015/8/14
SWAMP GIS is a spatially-based decision support system that empowers users in rural areas within Oregon (USA) with tools for predicting and mitigating stormwater runoff. SWAMP GIS is made freely avail...
Modeling hydrological response of the Upper Suriname river basin to climate change
Climate Change Climate Change Scenarios Geographic Information Systems Global Circulation Models Hydrologic Modeling Upper Suriname river basin
2015/8/13
The goal of this paper is to assess the impact of future climate change on the hydrological regime of the tropical Upper Suriname river basin (7,860 km2) located in Suriname. GCM based climate scenari...
Hydrology and Water Balance of Devils Lake Basin: Part 1 - Hydrometeorological Analysis and Lake Surface Area Mapping
hydrometeorology Devils Lake remote sensing Geographic Information System GIS runoff
2015/8/11
The spatial distribution of stocks of water is useful in studying flood, water pollution and water supply problems. Flood prone and closed basin watersheds benefit from spatial water balance studies i...
Spatially Distributed Watershed Mapping and Modeling: Thermal Maps and Vegetation Indices to Enhance Land Cover and Surface Microclimate mapping (part 1)
surface temperature vegetation indices Landsat land cover microclimate unsupervised classification
2015/8/6
The extent and type of watershed cover affects the movement of water in the hydrologic cycle, thus accurate representation of the physical and biological features of the landscape within the watershed...
Changes in runoff regime. The Lomnice catchment case study
Bilan model hydrological regime mass curve method water balance
2015/3/13
Water distribution in landscape is essentially influenced by the nature of the catchment rainfall-runoff process. Firstly, this paper presents an analysis of trends in the rainfall-runoff regime of th...
Runoff trends analysis and future projections of hydrological patterns in small forested catchments
climate change flow pattern headwater catchments hydrological modelling
2015/3/10
The aims of the present study were (i) to evaluate trends in runoff from small forested catchments of the GEOMON (GEOchemical MONitoring) network during the period 1994–2011, and (ii) to estimate the ...
Regional analysis using the Geomorphologic Instantaneous Unit Hydrograph (GIUH) method
Ammameh catchment geomorphologic and geomorphoclimatic instantaneous unit hydrographs rainfall-runoff model regionalization
2015/3/10
The construction of design flood hydrographs for ungauged drainage areas has traditionally been approached by regionalization, i.e. the transfer of information from the gauged to the ungauged catchmen...
Long-term trends of rainfall and runoff regime in upper Otava River basin
trend analysis rainfall runoff climate change human impact the Otava River basin Czech Republic
2015/2/4
The floods experienced recently in the Czech Republic gave rise to numerous discussions over the changed environment and related potential impacts on the rainfall and runoff processes. The main aim of...
Storm runoff in the foothill headwater area Senotín
headwater area storm runoff water retention runoff retardation
2015/2/4
The purpose of the pilot project Senotín (1993–2000) was to prove the methods of revitalization of sub-mountain headwater area (0.38 km2) in the Novobystřická Vysočina Highland (610–725 m a....