目前工具包集成了遗传算法，二进制遗传算法，模拟退火，快速模拟退火(VFSA)，SCPSO（见王书功博士论文），和线性规划。模型部分目前只集成了简单的二水源新安江模型。目标函数包括了NSE、RMSE、BLAS等；优化目标包括最大化和最小化。

工具包使用Qt 4实现，理论上可以在Windows、Linux、Mac等主流平台上编译运行，但我们只测试了Windows平台。

存在的问题：

1. 目前没实现多线程和并行支持（尽管一些算法本身是支持并行），如果计算量过大，会导致界面不响应。

2. 以后如果增加 目标函数收敛 的动态图形界面，就更完美了。

QGIS 1.0出来了，想拿 visual studio 2008 c++ express 编译一下，结果发现依赖的库太多了，还不是一下子能搞定的事。想将这个用起来，刚提交的863任务书将原 arcengine改成 qgis，将swat模型改成 noah，还是尽量的使用开源吧。研究性的东西不应该全用闭源或者商业的东西，不利于成果的推广。

学生应用clips做了一个简单的节水城市评估原型系统，初步演示了，

1. 知识推理引擎可以应用在水资源有关的管理和实践上。知识推理引擎尤其在涉及大量复杂知识规则的系统里，将十分有效；

2. clips与gis的集成，clips与其它应用程序的集成。

开发环境，

clips 6, Qt/win opensource, vc++ 2008 express, arcgis 9.2

我们最近实现了一个多准则决策(Multi-Criteria Approach Decision Making)的一些简单算法，Qt 4实现，代码可以全部主流平台上编译。更多算法以插件的形式添加进来。

 
value function (analysis matrix -> evaluation matrix)

 
indicators简单加权实现及solution ranking

Zhuotong Nan (zhn1@pitt.edu)

Stage II

Be produced directly from the real-time gauge and WSR-88D radar data received at NCEP.

raingauges:

• from ~1450 ASOS sites from near-real time METAR file
• and from ~5500 HADS automated gauge reports via the GEOS data Collection Platform.

Radar:

• Hourly real-time Digital Precipitation Arrays (DPAs) from 140 ConUS WSR-88D radar sites.

The primary input to the ETA/EDAS precipitation assimilation before 2003.

Stage IV

A mosaic of regional multi-sensor analysis produced by NWS River Forecast Centers (RFCs) and benefits from the RFCs’ manual quality control step

mosaicked from the regional multi-sensor 1h and 6h analyses produced by the 12 ConUS RFCs.

The primary input to the ETA/EDAS precipitation assimilation after 2003. Stage II is only used when Stage IV is unavailable.

In summary,

Since Stage IV benefits from manual QC at the local RFCs, it is generally better than Stage II, which has no manual QC. There are a number of other issues for your consideration:

1. Coverage period: Stage II began to be archived at NCAR on 1 May 1996. Stage IV did not began to be archived until 1 Jan 2002. (NOTE: we have data from 1997 on for OHIO river basin. I guess this statement is for entire continuous continental, rather than for an individual RFC. -Zhuotong)

2. Do you need hourly or 6-hourly analysis? For 6-hourlies, Stage IV is the one to use (if you don't need the pre-2002 data). Stage IV hourlies have some coverage problem since we do not receive the local analyses from all the RFCs for all hours.

3. How soon do you need the analysis to be available? Stage II hourly analysis is made at 35 minutes after the top of the hour, then re-made twice at 6 hours and 18 hours later. Stage VI runs each hour at approximately 35 minutes past the top of the hour.

4. If I choose Stage II, which type should I use? We recommend the multi-sensor analysis with the exception of early spring - early Aug 2000, when the radar coverage was bad. You might want to use the gauge-only analysis for that time period.

Validation examples:

figure 1 24 hour precipitation accumulative amount on OCT 10, 2004, Stage II (left) and Stage IV (right).

figure 2 Left: Stage II; Right: Stage VI. On Jun 28 2005. Here we can see the variance between them.

References:

1. http://www.emc.ncep.noaa.gov/mmb/ylin/pcpanl/refs/stage2-4.19hydro.pdf
2. http://www.emc.ncep.noaa.gov/mmb/ylin/pcpanl/QandA/
3. http://www.emc.ncep.noaa.gov/mmb/ylin/pcpverif/daily/

Asian Water News Control

* fix the problem it cannot be shown when clicking items from Article module.
+ add cache support (10min).
+ add History.txt.
# make it only visible on home page.