FEWS_Taiwan 20120822工作日誌

主機config file同步出現問題

造成資料庫表單內容遺失毀損

已重新上傳config file

定時備份config file有其必要性

淡水河soebk系統更新

調整內容

串接 觀測水位10分鐘資料庫呈現不穩定狀況需要調整

FEWS_Taiwan工作日誌 2012.07.20

1.高屏溪流域與蘭陽溪流域 流量系集預報確認完成
2.克利金法空間內插使用之集水區代表點需要重新確認是否更新到多邊形形心中心
3.六河局曾文水庫降雨量推估工作更新 1630P065;三角南山 1630P063;表湖測站資料來源
4.四河局濁水溪流域新增 1510H083南雲大橋

國立臺北科技大學 土木工程系

QGIS Field Calculator Functions

在QGIS中 提供幾個在GIS常用的查詢語法 來計算圖形資料數值

如面積、週長 、長度 與點位的x y坐標值

$area - area of polygon

$perimeter - perimeter of polygon

$length - length of line

$x - x coordinate of point

$y - y coordinate of point

更完整的資料請 參考網址
http://hub.qgis.org/wiki/17/List_of_Field_Calculator_Functions

Real-time updating and data assimilation information

http://www.nws.noaa.gov/oh/rfcdev/projects/rfcHMET_docs.html
DHI Comments
"Real-time updating or data assimilation are not mentioned in the
questionnaire or the general comments of the report. It has been our
experience that this process of correcting the forecast in real-time is
vital to achieving accurate and reliable information to use for making
critical decisions on flood warnings vs. flood alerts. Neither HEC-RAS
nor FLDWAV have the capability of performing this type of treatment on
the simulated data.
If you do come across a situation where you are evaluating the
performance of the flood forecasting systems and it appears that they
are not producing representative forecasts of water levels or flows,
then it may be something that could be resolved using the data
assimilation techniques available with the MIKE 11 system."

FEWS_Taiwan 相關國外參考文獻資料

在美國 NWS EVALUATION OF DIFFERENT HYDRAULIC MODELS IN SUPPORT OF
NATIONAL WEATHER SERVICE OPERATIONS （2007）評估報告中

提到 Flood Early Warning System (Delft-FEWS) that provides flood
forecasting and warning systems customized to the specific
requirements of an

individual flood forecasting agency. Some of the current Delft-FEWS
applications are in Germany, Taiwan, Vietnam, Thailand and Singapore.

Hydrology model website

Surface Hydrology Forecasting and Prediction System
http://chrs.web.uci.edu/research/hydrologic_predictions/activities07.html

KINEROS
kinematic runoff and erosion model
http://www.tucson.ars.ag.gov/kineros/


Variable Infiltration Capacity (VIC)
Macroscale Hydrologic Model
http://www.hydro.washington.edu/Lettenmaier/Models/VIC/index.shtml

excel中進行資料篩選比對

excel中進行資料篩選比對

利用進階篩選功能

首先選擇進行要分析篩選的資料內容與範圍

接著選擇篩選分析原則 （時間、字串 ...）

最後選擇存放位置 （原資料位置顯示或複製到標單另外一個位置）

即可完成資料快速篩選的工作 可以大幅度減少資料比對時間

使用之excel 為 2010版本

National Taipei University of Technology
Jhih-Cyuan Shen