Skip Navigation Links 
NOAA logo - Click to go to the NOAA homepage National Weather Service   NWS logo - Click to go to the NWS homepage
Environmental Modeling Center
Local forecast by
"City, St" or
Zip Code


Marine Modeling and Analysis Branch Logo Click here to go to the MMAB home page

Image Viewer Help

Global RTOFS viewer layout
  • Main Menu: Pick from the major categories of Global products and information
  • Image Selections: Select from the list of subregions, parameters, layers, and image size (small/large).
  • Viewer Controls: The controls are, from left to right (with keyboard equivalents in parentheses):
    1. |< : Go to first image (shift left-arrow)
    2. < : Previous image (left-arrow)
    3. Start : Start/Stop animation toggle (space bar)
    4. > : Next image (right-arrow)
    5. >| : Go to last image (shift right-arrow
    6. -Speed+ : Adjust animation speed
    7. Loop : Loop/Sweep/None toggle
    8. Navigator : Current image indicator and navigator control
  • Notes
    1. Loop/Sweep/None toggle switches between a loop through the forecasts (nowcast-24 hr-48 hr-72 hr-96 hr-120 hr-140 hr) to sweep back and forth through the list of selected images (see navigator notes below on image selection).
    2. The Navigator control has three functions: (1) the green dots indicate images loaded and ready to display. The current image is shown as a blue dot in the control. (2) If an image is not available, the viewer will show a red dot at the corresponding position in the loop and will skip over it. (3) If you Control-Click (hold the Ctrl button while clicking) on a green button, it will toggle to red and the viewer will skip that image when you single step or loop it.

EMC/MMAB Information Topics:
All Products, About Us, Contact Us
NOAA/ National Weather Service
National Centers for Environmental Prediction
Environmental Modeling Center
Marine Modeling and Analysis Branch
5830 University Research Court
College Park, MD 20740
About Us
Career Opportunities
Privacy Policy
Page last modified: Friday, 05-Oct-2012 18:46:17 UTC