Loading CHS Web Tool

  1. Welcome to CHS

    First time here?

    Please proceed through this brief guided tour to get started.

  2. Project Selection

    Select a project from the top drop down list. Then select a sub-project, or sub-region. The map, and the data tree, will be updated to reflect your selections.

  3. Save Points

    This tab represents all point data of various types. The data tree below provides a listing of the types of data available based on project selections above. These data types represent layers displayed on the map in the form of icons and can be turned on or off by clicking the checkbox. The numbers represent the number of point locations on the map for that particular data type. Zooming in on the map will display the icons.

  4. Storm Data

    This tab represents access to storm data. Clickable buttons below provide download access to storm parameters and storm recurrence rates for the selected project. The storm tracks are temporarily disabled, but are available for download via each project's Document Center, by clicking on the Document Center button on the top tool bar.

  5. Map Navigation

    The shaded ellipse on the map represents the general area for the selected project. The number inside represents the total number of point locations based on the selections in the data tree for the Save Points tab. Zoom on the map to your specific area of interest to view point locations. Icons will appear. Hovering the mouse on an icon will display the point ID and data types. Clicking an icon will display a popup box that provides the location in lat/lon, the data types, and listing of all parameters available for each data type. Clicking the Next and Prev buttons in this popup scrolls through the various data types at that location. Some projects may also include static images in this popup.

  6. Data Selection Tool

    Clicking the Data Selection Tool Button changes the mouse mode to allow drawing on the map. After clicking this button, place the mouse pointer on the map where you want to select data, click and hold down the left mouse button and draw around the icons to select them. You will see a red line on the map as you draw and once you release the mouse button, the drawn area will enclose and all icons inside that area are selected. To complete this process, you must click the green Submit button located on the top tool bar just to the right of the Data Selection Tool Button. This will then produce a popup window with tabs that provides a listing of all of the point locations selected. If you draw an area that is incorrect, you can click the yellow Clear button, then click the round Data Selection button and try again.

  7. Download/View Data

    The popup window for the selected icons contains tabs for Model Results and Observations, as well as statistics results AEP and NLR. In the Model Results tab, you will see a listing of all point locations and model types selected. Click the checkbox to the left to select a point and a model type. You can then select to Download, or view the Time Series data or the Peaks data. Download provides the option to download H5 format or convert in real time to .CSV format. Clicking the View Time Series or View Peaks will then display a listing of all parameters for all storms for the selected point and model types. This listing can be long. Note that there is a filter option at the top of this window allowing you to filter by the point id, the storm id, the name of the storm, or the parameter name. You can then select one or multiple parameters and either view, or graph.

    For further information, please click the Help button in the upper right corner or check the CHS Website at https://chs.erdc.dren.mil