A paper published in JoH

Application of the MacCormack scheme to overland flow routing for high-spatial resolution distributed hydrological model

Although process-based distributed hydrological models (PDHMs) are evolving rapidly over the last few decades, their extensive applications are still challenged by the computational expenses. This study attempted, for the first time, to apply the numerically efficient MacCormack algorithm to overland flow routing in a representative high-spatial resolution PDHM, i.e., the distributed hydrology-soil-vegetation model (DHSVM), in order to improve its computational efficiency. The analytical verification indicates that both the semi and full versions of the MacCormack schemes exhibit robust numerical stability and are more computationally efficient than the conventional explicit linear scheme. The full-version outperforms the semi-version in terms of simulation accuracy when a same time s[……]

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A paper published in STOTEN

Comparison of baseline period choices for separating climate and land use/land cover change impacts on watershed hydrology using distributed hydrological models

  • Key Laboratory of Remote Sensing of Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
  • Ministry of Education Key Laboratory of Virtual Geographic Environment, Nanjing Normal University, Nanjing 210023, China
  • Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China
  • College of Hydrometeorology, Nanjing University of Information Science & Technology, Nanjing 210023, China

Abstract

Separating impacts of land use/land cover change (LUCC) and climate change on hydrology is essential for watershed planning and management. This is typically done via hydrological modelling in combination with the on[……]

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ArcGIS Licience过期的解决方法

今天需要用ArcGIS workstation处理一些数据。结果发现arggis的licience出现错误。如下:

我check了一下我的licience 文件,如下。可以看到,licience的有效日期是11月17号

为了解决这个问题。两种方法:

(1)修改系统时间,修改到过去的时间,这种方法简单有效。

(2)重装Licience

我这里选用第一种方法,测试有效。

 

终于翻成功了!

最近好长一段时间,翻不了墙,学术搞起来很是费解,今天终于有人搞定了,感谢牛人贡献!

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win7旗舰版 广东联通 一直使用自己的30多个Appid
昨天重新安装XX-Net-3.7.2,然后悲剧的发现失败了
今天看了#7506这位亲的介绍 成功了 可以下载Y2B的视频 速度很快
步骤如下
1 控制面板—网络和共享中心–点本地连接—点属性—点tcp/IPv6—-点属性—点 使用下面的DNS服务器—在上面一行复制黏贴 2001:4860:4860::8888 下面一行复制黏贴 2001:4860:4860::8844 —-确定

2 新建一个TXT文件,在里面复制黏贴这个

net start “ip helper”
netsh int ipv6 reset

netsh int teredo set state default
netsh int 6to4 set state default
netsh int isatap set state default
netsh int teredo set state server=teredo.remlab.net
netsh int ipv6 set teredo enterpriseclient
netsh int ter set state enterpriseclient
route DELETE ::/0
netsh int ipv6 add route ::/0 “Teredo Tunneling Pseudo-Interface”
netsh int ipv6 set prefix 2002::/16 30 1
netsh int ipv6 set prefix 2001::/32 5 1
Reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Dnscache\Parameters /v AddrConfigControl /t R[……]

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A Paper Published in Sustainability

Development of an Evapotranspiration Data Assimilation Technique for Streamflow Estimates: A Case Study in a Semi-Arid Region

Ying Zhang, Ling Zhang, Jingliang Hou, Juan Gu and Chunling Huang

Abstract

Streamflow estimates are substantially important as fresh water shortages increase in arid and semi-arid regions where evapotranspiration (ET) is a significant contribution to the water balance. In this regard, evapotranspiration data can be assimilated into a distributed hydrological model (SWAT, Soil and Water Assessment Tool) for improving streamflow estimates. The SWAT model has been widely used for streamflow estimations, but the applications combining SWAT and ET products were rare. Thus, this study aims to develop a SWAT-based evapotranspiration data assimilation system. In particular, SWAT is gridded at Hydrologic Response Unit (HRU) level to incorporate gridded ET products acquired from the remote sensing-based ETMonitor model. In the modeling case, Gridded SWAT (GSWAT) shows[……]

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