CWOP Map/Data Displays

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Related Links: CWOP info APRS-IS info findu.com info FAQ & Forums T238 home page MADIS Program APRSWXNET info APRS Servers to Use NOAA mesonet display

1. Data Time History Displays

You can look at the data time history over the past 1, 2, 5, and 10 days by clicking on a state in the weather radar map in the box below. If the map is not there, click here to get a list of stations in Colorado and then change the "CO" in the URL to the two letter designator for the state you want. Here's a short form for these same links.

This current national weather radar map was provided by Weather Underground. Click on a state to get a north to south station list for that state.

Other US CWOP Stations: AK - DC - DE - HI - GU - MP - PR - RI - VI

International CWOP Stations: AT - AU - BE - CA - CH - DE - DK - ES - FI - FR - GR - IT - JP - MX - NL - NO - NZ - PL - PT - SE - UK - Caribbean - other

Educational CWOP Stations: REALM School Network (Miami, FL)

2. Information from non-registered Stations

You can find information from yet-to-be registered member sites by clicking on a state in the map below. If the map is not there, click here to get a list of members in Colorado and then change the "CO" in the URL to the two letter designator for the state you want.

This current national surface temperature map was provided by Weather Underground. Click on a state to get a partial list of members for that state.

Other not-yet Registered Members: DE - RI - DC - World

3. NOAA Mesonet Map Web Page

The NOAA Mesonet map shows all the MADIS mesonet data. The URL can be modified to open the map in various ways that the viewer wishes. Details on how to do this are given on the change details page. To see one different view, use item # 1 above, click on any state and then for any station, click under "NOAA MesoNet map" to see the local part of the mesonet for that station. The USGS Mapviewer can be used to generate another almost similar-sized map of the same local area. Click "Find Place" on the USGS map viewer and then select "Point (longitude-latitude,UTM,USNG)". Enter the longitude and latitude (in decimal degrees) from the URL for the local part of the NOAA mesonet and then select "region" and click "zoom to point". On the right side, select the different layers you would like to see, for example, under Transportation, uncheck roads and check airport runways. And under Hydrography, check streams and waterbodies. Then on the left side click "zoom out" and then click once on the green triangle in the center to zoom out by a factor of two around that center. The resulting map is the same dimension in east-west as the NOAA mesonet map and is slightly larger in the north-south direction. To show larger areas, each x2 zoom out in the USGS map is the same as a halving of the scale factor in the NOAA Mesonet map. It is not difficult to overlay these two maps to produce a static map like that below of the Denver-Boulder area (mountains to the left and DIA airport to the right) showing mesonet stations, topography, runways, streams and lakes.

The NOAA Mesonet map and the USGS multi-layer map can be overlaid by first extracting the individual maps from the screen displays. One way of doing this is to use the custom crop feature of Irfanview. The actual numbers used may change depending on your browser and screen size. Using the Firefox browser with the navigation toolbar and screen size 1024 x 768, the NOAA Mesonet map can be extracted from the screen image by moving the right slider up so the entire map is visible and the top of the "Select Data" button is still visible but very near the top of the viewable area. Then get the image by pressing "Print Screen", opening IrfanView and pressing Cntl-V. With the NOAA Mesonet screen image showing in IrfanView, press "Edit", "Create Custom..." , 202, tab, 168, tab, 600, tab, 350, "apply to image", Cntl-C, D, Cntl-V. This image can then be saved as a bitmap (*.BMP) for the foreground image. A similar procedure can be used with the USGS mapviewer image; press "Print Screen", open IrfanView, Cntl-V, "Edit", "Create Custom...", 108, tab, 154, tab, 729, tab, 449, "apply to image", Cntl-C, D, Cntl-V and this can be saved as a bitmap if desired, but it needs to be slightly reduced to match with the foreground image. This is done by pressing "Edit", "Create Custom...", 0, tab, 61, tab, 729, tab, 329, "apply to image", Cntl-C, D, Cntl-V and save as the background bitmap image. Now the background and foreground images cover the same area and can be combined into a composite image like the one above. If you have a perl interpreter installed, you can combine the 2 images by using overlay2.pl where the command line "perl -w overlay2.pl background.bmp foreground.bmp combine2.bmp" will run the script and combine2.bmp is the desired output and the background has been modified to match the foreground.

4. APRSworld database

The APRSworld database receives the APRS-IS data stream and stores the packets in a structured database that is open to the public. You can retrieve your data or other data in text, graphical, or spreadsheet form. Response is sometimes slow (but sure) depending on your and other requests. Faster response is available through the APRSworld plain-text archive.

5. javAPRS Findu

The JavAPRS Findu link gives another way to look at the findu.com data base and the data from CWOP weather stations. This versatile tool allows you to map out weather station positions on weather radar maps and display the current data from those stations. It also has graphical capabilities to display multiple day periods of data collected by your station.

6. NOAA Observing System Architecture (NOSA) Database

CWOP is a part of the NOSA database. You can view CWOP entries in NOSA using a map with zoom and pan capability. The individual station locations are hyperlinked to the NOSA database. This viewer has the versitility to look at the NOSA database for CWOP and the other measurement systems in many different ways.

7. MesoWest Google Maps

MesoWest has a mapping application based on Google maps that can display all the CWOP stations In North America and other North American networks as well. It can be accessed here and comes up for RAWS stations in Colorado. To see CWOP and other stations, use the settings box in the upper right to select "All Networks" and press "Map It!". To select other areas in North America use the adjacent box.