Part 1—Select and Retrieve Data from EOS Webster

1. In order to receive data from EOS-WEBSTER you must be a registered user. Registration only takes a minute. You can get there from the homepage at EOS-WEBSTER. Once there, click on the Register as a User link or click on this link to go directly to the registration page: EOS-WEBSTER Registration

1. Once you have registered, from the homepage, go to the Data Selection page by clicking on the Data tab of the headers, or use the link provided below for the Search and Retrieve Tool: EOS-WEBSTER Search and Retrieve Tool.






2. From the Data page, download annual climate projection data including: precipitation, maximum and minimum temperature, and solar radiation. Complete this set of steps twice, first for the state of California, and then for the state of Minnesota from the VEMAP2 Transient Dynamics Data collection for the years 2000 through 2100. Use the Spatial, Temporal, Collection, and Freetext filters to specify this data. When you've made your selections, click the Update Holding Count button to execute your search. Each filter should reduce the number of holdings that match your criteria. Start with the Collection tab, and choose the VEMAP2 Transient Dynamics Data at or near the bottom of the list of data collections.
   



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The basic tool used to select and order data from EOS-WEBSTER is the Search and Retrieve Tool. Go to EOS-WEBSTER and invoke the Search and Retrieve Tool by selecting the Data button on the EOS-WEBSTER homepage.








EOS-WEBSTER offers 5 methods (called filters) to select and order data from their database. Users can search the database by Collection Name, Spatial Region, Temporal Range, Keyword, or Freetext, using one filter or a combination of filters to locate the desired data. For this chapter, users are only interested in climate projection data for two specific states for the years 2000 through 2100; use the Collection, Spatial, Temporal, and Freetext filters to retrieve the data.

1. First, click the Collection tab to use the Collection filter.
   
   
   
   
   Once on the collection page, scroll down the list to locate the VEMAP2 Transient Dynamics Data collection at the bottom of the list. Check the check box next to the of the collection name to select it. Then, click TCLIMATE to select this set of data.




2. Next, use the Spatial filter to select California holdings from the database. Click the Spatial filter tab and then choose the Gazetteer link.










3. Choose USA States as the category (you may need to use the scroll bar) and then click the Select Category and View Map button to choose a location from within that category.
   
   
   
   
4. Select California and click the Update Holding Count button.
   
   
   
   
   
5. As you click the Update Holding Count button, notice the Matching Holding Count box in the upper right-hand corner of the Search and Retrieve Tool. The Matching Holding Count is the number of holdings in the EOS-WEBSTER database that match your search criteria. Using the Spatial Filter and selecting only California holdings has significantly reduced the Matching Holding Count.
   
   
   
   
   
6. Next, specify the time period of interest. Select the Temporal filter and specify the Begin Year as 2000 and the End Year as 2100.
   
   
   
   
   
7. Execute this search by clicking the Update Holding Count button.
8. Finally, use the Freetext filter to query the database to find all solar radiation, precipitation, or temperature holdings. Use the operator 'OR' —must be capitalized—to join the search terms and enter the search string as:
   solar radiation OR precipitation OR temperature.
   
   
   
   
   
9. When finished, click the Update Holding Count button one more time. You should now have a manageable number of holdings. In the next step you will view these holdings in greater detail. Select the View Matching Holdings tab.
   
   
   
   
   

1. View the matching holdings. Select the data sets for annual (not mean monthly) minimum temperature, maximum temperature, solar radiation, and precipitation from the Canadian Climate Center. Begin with the maximum and minimum temperatures. Choose the output format, ASCII Tabular. Once you've made your selections, scroll up and click the Place Order button.
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1. Select the View Matching Holdings tab.
   
   
   
   
2. Scroll through the list of data holdings and select the four holdings for annual (not mean monthly) minimum temperature, maximum temperature, solar radiation, and precipitation from the Canadian Climate Center. You can differentiate the Canadian Climate Center holdings from the Hadley model holdings from the text in the holding note: Canadian Climate Center holdings are abbreviated CGCM1.
   
3. You will probably need to scroll to the middle of the page to find the holdings you want. Select holdings from the VEMAP2 Transient Dynamics Data collection. The maximum and minimum temperature holdings should look like this.
   
   
   
   
4. Select each of the four holdings by clicking the check box next to the holding. Use the output format, ASCII Tabular, since it is easily imported into a spreadsheet.
   
   
   
   The four holdings that you've selected should now look like this:
   
   
   
   
   
5. After you've selected your holdings, scroll to the top of the page and click the Place Order button. Proceed to the next step and select a compression type to place your order.

1. Place your order! You will receive an email notification when your data is ready, with instructions on how to download the data.
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Choose a compression type and then use the Place Order button to place your order. You will be prompted to login if you haven't done so already.





Generally, your order will be ready in only a few minutes.

1. You will receive an email notification from EOS-WEBSTER when your data order has been processed and is ready. Each order will have a email associated with it, which will contain a link from which you can retrieve the data. You can also go look in your order table which is accessible from the Data page menu.
   
   
   
   

Or, use the link provided in the order notification email, to download the data to your computer.

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You'll receive an email notification from EOS-WEBSTER when your data order has been processed and is ready. Each order will have a email associated with it, which will contain a link from which you can retrieve the data.

Click on the order link to take a closer look at the contents of your order.

Each holding within the order has two associated files: a data file (in ASCII Tabular format), and an auxiliary file. The auxiliary file provides additional information about the data.

Once you have checked your order, download the data to your computer. Download all the files (in a compressed format) by selecting the download.zip file link or the Download button.










You will recieve one email notification per order that you have placed. Therefore, you should have two emails (one for each state) in your inbox. You may find it helpful to download the data into different subdirectories, organized by state name.

If you experience difficulties downloading the data, the files that you will need are posted below.

PC users perform a "Save Target As.." by right-clicking on the following files and saving them to your hard drive. (These instructions apply when using Internet Explorer, Safari, and Firefox. Your download command may be slightly different for another browser.)

Mac users hold down the ctrl key and click "Download (or Save) linked file to disk.." to download the following files. Save them to your hard drive. (These instructions apply when using Internet Explorer and Firefox. Your download command may be slightly different for another browser.)

• zipped folder of all CA data for this lesson (Zip Archive 119kB May20 11)
• 12812 tairmaxTC-C1.txt (Text File 90kB May20 11)
• 12812 tairminTC-C1.txt (Text File 82kB May20 11)
• 12812 solradTC-C1.txt (Text File 107kB May20 11)
• 12812 pptTC-C1.txt (Text File 80kB May20 11)


• zipped folder of all MN data for this lesson (Zip Archive 67kB May20 11)
• 12813 tairmaxTC-C1.txt (Text File 51kB May20 11)
• 12813 tairminTC-C1.txt (Text File 43kB May20 11)
• 12813 solradTC-C1.txt (Text File 60kB May20 11)
• 12813 pptTC-C1.txt (Text File 42kB May20 11)