v4.1 Upper Air fields

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Jack Settelmaier, modified 3 Years ago.

v4.1 Upper Air fields

Youngling Posts: 67 Join Date: 11/2/12 Recent Posts

Great new update.

Thanks for the Tips/Tricks addition to know that one must use the Global domain choice to view these new Upper Air fields.

Select NBM v4.1 and domain Global to view NBM upper air fields

I take it these Upper Air fields are just the averages from ALL the model inputs used per forecast projection?

Jeffrey Craven, modified 3 Years ago.

RE: v4.1 Upper Air fields

Youngling Posts: 5 Join Date: 9/24/12 Recent Posts

There are 100 inputs to the 50km Global Upper Air Domain for NBM. 50 ECMWFE, 30 GEFS, 20 GEPS. These are not equally weighted. The GDAS analysis is used just like core NBM uses URMA to look at MAE, then bias correct each member, and then dynamically weight them based on the inverse of the MAE to GDAS. The only exception will be wind direction when it comes on line, as it will be an equal weight of the U and V components.

Jack Settelmaier, modified 3 Years ago.

RE: v4.1 Upper Air fields

Youngling Posts: 67 Join Date: 11/2/12 Recent Posts

Thanks Jeff.

I just toggled over from 500 Temp to 850 Temp, and despite it saying "contours: unavailable" in upper right, something's been contoured!?

On Wed, Dec 15, 2021 at 2:41 PM Jeffrey Craven <VLab.Notifications@noaa.gov> wrote:

There are 100 inputs to the 50km Global Upper Air Domain for NBM. 50 ECMWFE, 30 GEFS, 20 GEPS. These are not equally weighted. The GDAS analysis is used just like core NBM uses URMA to look at MAE, then bias correct each member, and then dynamically weight them based on the inverse of the MAE to GDAS. The only exception will be wind direction when it comes on line, as it will be an equal weight of the U and V components.

--
Jeffrey Craven Whole Story Uncertainty & Probabilities Viewer Virtual Lab Forum https://vlab.noaa.gov/web/wsup/forums/-/message_boards/view_message/19498413 VLab.Notifications@noaa.gov

Jack Settelmaier

Digital Techniques Meteorologist

NOAA/NWS, Southern Region HQ

Fort Worth, TX

Work Desk: 682 703 3685

Virtual Office (most core work hours): https://meet.google.com/ujm-ajkv-rhk

Kevin McGrath, modified 3 Years ago.

RE: v4.1 Upper Air fields

Youngling Posts: 26 Join Date: 11/29/12 Recent Posts

Thanks for catching this bug, Jack. I'll look into it tomorrow morning.

Cheers,

Kevin

------
Kevin M. McGrath
Research Associate
NWS/MDL Digital Forecast Services Branch/CIRA

Office: 256-724-2929

kevin.m.mcgrath@noaa.gov

Madison, Alabama

On Wed, Dec 15, 2021 at 3:25 PM Jack Settelmaier <VLab.Notifications@noaa.gov> wrote:

Thanks Jeff.

I just toggled over from 500 Temp to 850 Temp, and despite it saying "contours: unavailable" in upper right, something's been contoured!?

On Wed, Dec 15, 2021 at 2:41 PM Jeffrey Craven <VLab.Notifications@noaa.gov> wrote:

There are 100 inputs to the 50km Global Upper Air Domain for NBM. 50 ECMWFE, 30 GEFS, 20 GEPS. These are not equally weighted. The GDAS analysis is used just like core NBM uses URMA to look at MAE, then bias correct each member, and then dynamically weight them based on the inverse of the MAE to GDAS. The only exception will be wind direction when it comes on line, as it will be an equal weight of the U and V components.

--
Jeffrey Craven Whole Story Uncertainty & Probabilities Viewer Virtual Lab Forum https://vlab.noaa.gov/web/wsup/forums/-/message_boards/view_message/19498413 VLab.Notifications@noaa.gov

--

Jack Settelmaier

Digital Techniques Meteorologist

NOAA/NWS, Southern Region HQ

Fort Worth, TX

Work Desk: 682 703 3685

Virtual Office (most core work hours): https://meet.google.com/ujm-ajkv-rhk

--
Jack Settelmaier Whole Story Uncertainty & Probabilities Viewer Virtual Lab Forum http://vlab.noaa.gov/web/wsup/forums/-/message_boards/view_message/19498993 VLab.Notifications@noaa.gov

Kevin McGrath, modified 3 Years ago.

RE: v4.1 Upper Air fields

Youngling Posts: 26 Join Date: 11/29/12 Recent Posts

Jack,

It looks like the 850 mb height contours failed to display when you switched from Temp 500 to Temp 850. I'm not sure why this occurred, but could be due to web server load associated with increased traffic following yesterday's WSUP release. Although the failure was noted in the legend ("Contours: Unavailable"), the viewer was still displaying the original 500 mb contours, which is certainly confusing for users!

This has been fixed and a patch has been pushed to the WSUP Viewer. We're now doing a better job of identifying when imagery fails to load and when this occurs, clearing out any old imagery. Please let us know if you encounter any additional issues.

Cheers,

Kevin

On Wed, Dec 15, 2021 at 3:29 PM Kevin McGrath <VLab.Notifications@noaa.gov> wrote:

Thanks for catching this bug, Jack. I'll look into it tomorrow morning.

Cheers,

Kevin

------
Kevin M. McGrath
Research Associate
NWS/MDL Digital Forecast Services Branch/CIRA
Office: 256-724-2929

kevin.m.mcgrath@noaa.gov

Madison, Alabama

On Wed, Dec 15, 2021 at 3:25 PM Jack Settelmaier <VLab.Notifications@noaa.gov> wrote:

Thanks Jeff.

I just toggled over from 500 Temp to 850 Temp, and despite it saying "contours: unavailable" in upper right, something's been contoured!?

On Wed, Dec 15, 2021 at 2:41 PM Jeffrey Craven <VLab.Notifications@noaa.gov> wrote:

There are 100 inputs to the 50km Global Upper Air Domain for NBM. 50 ECMWFE, 30 GEFS, 20 GEPS. These are not equally weighted. The GDAS analysis is used just like core NBM uses URMA to look at MAE, then bias correct each member, and then dynamically weight them based on the inverse of the MAE to GDAS. The only exception will be wind direction when it comes on line, as it will be an equal weight of the U and V components.

--
Jeffrey Craven Whole Story Uncertainty & Probabilities Viewer Virtual Lab Forum https://vlab.noaa.gov/web/wsup/forums/-/message_boards/view_message/19498413 VLab.Notifications@noaa.gov

--

Jack Settelmaier

Digital Techniques Meteorologist

NOAA/NWS, Southern Region HQ

Fort Worth, TX

Work Desk: 682 703 3685

Virtual Office (most core work hours): https://meet.google.com/ujm-ajkv-rhk

--
Jack Settelmaier Whole Story Uncertainty & Probabilities Viewer Virtual Lab Forum http://vlab.noaa.gov/web/wsup/forums/-/message_boards/view_message/19498993 VLab.Notifications@noaa.gov

--
Kevin McGrath Whole Story Uncertainty & Probabilities Viewer Virtual Lab Forum http://vlab.noaa.gov/web/wsup/forums/-/message_boards/view_message/19499040 VLab.Notifications@noaa.gov

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