Using Northeast Regional Climate Center (NRCC) Data with WinTR-20 Prepared by Quan D. Quan Hydraulic Engineer, WNTSC Hartford, Connecticut October 26, 2010 NRCC Data - Connecticut October 2010 NRCC Data with WinTR-55

Program to convert NRCC text file and import it into WinTR-20 Program is incorporated into Windows interface; Reads NRCC text file created by the user thru download; After downloading text file, open WinTR-20 Windows interface and click “File” then “Import NOAA – NRCC Data”; Rainfall Distribution and Rainfall Data comes as a part of the Window WinTR-20 system. NRCC Data - Connecticut October 2010

Northeast Regional Climate Center web site: Open the NRCC web site at http://www.precip.net or http://precip.eas.cornell.edu/ NRCC Data - Connecticut October 2010

Import NRCC Data into WinTR-20 Click on “Data & Products” tab. NRCC Data - Connecticut October 2010

Import NRCC Data into WinTR-20 NRCC Data - Connecticut October 2010

Import NRCC Data into WinTR-20 NRCC Data - Connecticut October 2010

Import NRCC Data into WinTR-20 NRCC Data - Connecticut October 2010

Import NRCC Data into WinTR-20 NRCC Data - Connecticut October 2010

Import NRCC Data into WinTR-20 Using Windows Explorer, go to the “WinTR-20 Executables” directory and click on The following WinTR-20 System Controller/ Editor Screen comes up: NRCC Data - Connecticut October 2010

Import NOAA Data into WinTR-20 Select “Import NOAA –NRCC Data” from “File” pulldown menu. Locate the directory, select text file name “CT_Windham.txt” NRCC Data - Connecticut October 2010

Import NRCC Data into WinTR-20 Option to smooth the NOAA-NRCC Data ? Yes, for this example. NRCC Data - Connecticut October 2010

Import NRCC Data into WinTR-20 WinTR-20 Identifier window will pop up Edit / Enter - Min. Hydrograph Value - Watershed Description Click “Accept Changes (Close)” to close this window NRCC Data - Connecticut October 2010

Import NRCC Data into WinTR-20 Brings you back to the WinTR-20 System Controller / Editor window Double click on “Storm Analysis:” Double click on “Rainfall Distribution:” Note: the “sm” in the rainfall table identifier means this is a smoothed distribution. Note: (X indicates some data entered for section) NRCC Data - Connecticut October 2010 Import NOAA Atlas Data

Import NRCC Data into WinTR-20 Double click on “Storm Analysis:” Click “No Changes (Close)” button to close this window. NRCC Data - Connecticut October 2010

Import NRCC Data into WinTR-20 Select “Rain Table Identifier:” from pull down menu. Click “Display Data” button for graphical view of the Rainfall Distribution. Click “No Changes (Close)” button to close this window. NRCC Data - Connecticut October 2010

NRCC Data - Connecticut October 2010 Standard Curve Smooth Curve NRCC Data - Connecticut October 2010

Import NRCC Data into WinTR-20 From “File” menu, select “Save As” – give a file name and location. “Run” button is now available. NRCC Data - Connecticut October 2010

Import NRCC Data into WinTR-20 Try to “Run” WinTR-20 Generated WinTR-20 Error File - No Stream Reach data - No Sub-Area data. NRCC Data - Connecticut October 2010

Import NRCC Data into WinTR-20 Warning – do not import NOAA-NRCC data to an existing WinTR-20 file using the WinTR-20 Controller/Editor. The existing data will be erased and replaced by NOAA-NRCC Data. Instead, save the WinTR-20 input file containing NOAA-NRCC Data, close WinTR-20, and use Notepad to copy and paste the data into the existing WinTR-20 data file. NRCC Data - Connecticut October 2010

Demonstration Using NRCC Data NRCC Data - Connecticut October 2010

NRCC Data - Connecticut October 2010 Demonstration Double click on “Sub-Area:” Enter the Sub-Area information NRCC Data - Connecticut October 2010

NRCC Data - Connecticut October 2010 Demonstration Enter “Sub-Area Identifier:” Enter “Sub-Area Reach Identifier:” Enter “Sub-Area Drainage Area:” Enter “Weighted Curve Number:” Enter “Sub-Area Time of Concentration:” NRCC Data - Connecticut October 2010

NRCC Data - Connecticut October 2010 Demonstration Double click “Global Output:” Click “Yes” for Default Peak Output Code: Click “Yes” for Default Hydrograph Output Code: Click “Accept Changes (Close)” button NRCC Data - Connecticut October 2010

NRCC Data - Connecticut October 2010 Demonstration Click “Save” button Now you’re ready NRCC Data - Connecticut October 2010

Windham County, Connecticut Demonstration Determine the runoff volume and peak discharge for the current (existing) watershed conditions. Drainage Area (Area 1) 24.50 ac / 0.04 sq.mi. Runoff Curve Number 74 Time of Concentration 0.237 hours Windham County, Connecticut NRCC Data - Connecticut October 2010 NRCC Data with WinTR-55

Results – Demo Windham, Connecticut NRCC Data Rainfall Data 25-Year 5.94 in Rainfall Distribution Type WinTR-20 Peak Discharge 74.8 cfs Runoff Amount 3.120 in NRCC Data - Connecticut October 2010 NRCC Data with WinTR-55

NRCC Data - Connecticut October 2010 Questions ? NRCC Data - Connecticut October 2010

NRCC Data - Connecticut October 2010 The End NRCC Data - Connecticut October 2010 Import NOAA Atlas Data