Once you have checked the data, copy and paste the station’s data from the CoCoRaHS site into a spreadsheet program such as excel.What date did the rainfall amount peak? How do the stations vary? In this case, there was a rainy period from approximately June 1 -15, 2008. Look for any days of intense precipitation.Check the data to see that it makes sense-is it what you asked for? Choose the dates 6-02-2008 and 6-12-2008 as your beginning and end dates. Use the saved map of stations from step 3 of part 1 to view the station locations. In the next page that loads, you can type in the station ID numbers of any three stations that are of interest.On the side bar, under the heading View Data, click on the link “station precip summary.” To access the data from this site.(Record the following: Station IN-MN-14, Latitude 39.265964, Longitude -86.521293.) Optional: click view the station in Google Maps. Record this station’s latitude and longitude to use later in the comparison with satellite data.In the table of stations, under the “view” heading, click on the magnifying glass in the row with “IN-MN-14″ to learn more about this station’s detailed location, including its latitude and longitude. The stations are listed by state, county and ID number. There are many stations in Indiana, this will select only the 15 stations that are in Monroe County. For this example choose, Indiana and Monroe County.
On the next page, choose the state and county you are interested in.This is a list of stations by state and county. Scroll most of the way down the list to the link “List Stations”. On this page there will be a list of station types. This time on the top tab bar, click on, “view data”.Open a new window in your browser with the CoCoRaHS home page again.We will use this station location map for reference later, so save it in the background or on your desktop. A map window will open with stations shown as little dots with their ID numbers next to them.Leave the dates and map colors in their default settings. Under map location title, use the pull down menu to select “stations,” choose your state of interest.Once the daily maps page loads, select the “Station Number Maps” link from the list of map types.Once the site has loaded, click on the word, “maps”.Access the map of the area that you are interested in.
#Minnesota rainfall totals map how to
How to find a station of interest in CoCoRaHS. This extreme rainfall event subsequently caused intense flooding in the Ohio and Lower Mississippi watersheds. The station, near Indianapolis, Indiana, received a record-breaking period of rainfall from June 2-12, 2008.
Using the June 2008 Midwest flood event, this section illustrates how to explore satellite data and rain gauge data together to answer questions about regional rainfall.įor this example, we are going to use a station in Monroe County, in south-central Indiana. By increasing the number of rain gauge measurements, citizen scientists can help increase the overall accuracy and precision of space-based precipitation monitoring. Check out the corn blow-down in some areas of South Dakota.How successfully do rain gauges catch rainfall patterns? Do the satellites record the same patterns of data as the ground-based gauges? How many gauges are required in order to observe regional patterns in rainfall? Scientists compare measurements from rain gauges with satellite measurements to answer these and other related questions. Southern Minnesota farmers are lucky that the highest winds blew across South Dakota Tuesday. It’s still dry in that zone and more rainfall is needed for crops, lawns, lakes, and rivers. Highway 212 corridor from western Minnesota eastward into the Twin Cities saw less rainfall. Keep in mind that summer convective rainfall totals are often highly variable over short distances.Īreas north of the heavy rain zone missed out on the most significant rainfall. The 5 inches that fell in Albert Lea is too much (flooding) rain.īut many locations picked up a more beneficial 1 to 3 inches last night. Here are some select rainfall totals from Tuesday evening across southern Minnesota. National Oceanic and Atmospheric Administration
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