Difference between revisions of "Talk:060512Report NCDCGlobalWinds"
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+ | == NCDCGlobalWinds Feedback == | ||
+ | |||
+ | <H3>Regarding # 2 / Low Wind Speeds Over Land </H3> | ||
+ | These are <B>+10 meter winds</B>. It was understood the original plan was +50 meter, | ||
+ | The GFS model used for these averages gives us the following options: | ||
+ | <OL> | ||
+ | <LI>Standard pressure levels</LI> | ||
+ | <LI>Sigma 0.995</LI> | ||
+ | <LI>+10 meters above sfc</LI> | ||
+ | <LI>+0 to +30 mb above surface avg</LI> | ||
+ | <LI>+1829 meters above sfc</LI> | ||
+ | <LI>+2743 meters above sfc</LI> | ||
+ | <LI>+3658 meters above sfc</LI> | ||
+ | <LI>Maximum wind level</LI> | ||
+ | </OL> | ||
+ | I was told to try 10 meter first. But I'm not surprised that | ||
+ | winds at this level are a little weak over land, due to | ||
+ | friction interaction at that level. | ||
+ | If you want to try something else, I could whip up another file rather quickly ~ would just be a matter of changing a variable name in a script, changing some nc metadata, etc. and rerunning grads. | ||
+ | |||
+ | The averaging function documentation is here: | ||
+ | http://grads.iges.org/grads/gadoc/gradfuncave.html | ||
+ | Will provide limited insight however. | ||
+ | But I highly doubt this is the cuase of the low wind speeds. | ||
+ | |||
+ | |||
+ | <H3>Point # 3</H3> | ||
+ | We have had a fire in our camp I have had to drop everything to resolve lately. | ||
+ | Just starting to get back to this. As far as I know, the WCS service is built into the TDS. | ||
+ | I've simply attached this service to the .nc global file. If there is more to do, I am not sure and would appreciate any feedback if this is inadequate. | ||
+ | |||
+ | <pre> | ||
+ | Dan Swank | ||
+ | NCDC-NOMADS | ||
+ | </pre> |
Revision as of 11:39, May 10, 2006
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NCDCGlobalWinds Feedback
Regarding # 2 / Low Wind Speeds Over Land
These are +10 meter winds. It was understood the original plan was +50 meter, The GFS model used for these averages gives us the following options:
- Standard pressure levels
- Sigma 0.995
- +10 meters above sfc
- +0 to +30 mb above surface avg
- +1829 meters above sfc
- +2743 meters above sfc
- +3658 meters above sfc
- Maximum wind level
I was told to try 10 meter first. But I'm not surprised that winds at this level are a little weak over land, due to friction interaction at that level. If you want to try something else, I could whip up another file rather quickly ~ would just be a matter of changing a variable name in a script, changing some nc metadata, etc. and rerunning grads.
The averaging function documentation is here: http://grads.iges.org/grads/gadoc/gradfuncave.html Will provide limited insight however. But I highly doubt this is the cuase of the low wind speeds.
Point # 3
We have had a fire in our camp I have had to drop everything to resolve lately. Just starting to get back to this. As far as I know, the WCS service is built into the TDS. I've simply attached this service to the .nc global file. If there is more to do, I am not sure and would appreciate any feedback if this is inadequate.
Dan Swank NCDC-NOMADS