# Presentation: 700218

## Blended DMSP SSM/I - GPS/MET - NOAA AMSU   Total Precipitable Water Product

**NOAA/NESDIS collaborating with                                                                 CIRA-Colorado State University**

**N-15                     N-18 **

**                       ****12                  24                    36                 48                   60                  72 mm**

**GPS-MET**

**F-13 F-14**

**METOP A**

**DMSP SSMI  F-13 and 14**

**Ground-based GPS and GOES Sounder**

**NOAA AMSU  N-15, 18 and METOP**

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## Benefits of Blended TPW Product                                       (over a single sensor product)

- Less data gaps
- Eliminates bias between data sets
- Faster processing = faster delivery
- More frequent updates with new data
- Critical TPW coverage over CONUS and Caribbean
- Reduces analysis time for improved forecasts

- Single sensor microwave product

- Multi-sensor blended microwave product

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## Compare and Contrast

-  **Water vapor/moisture centered 3 to 8 km****                                         **

-  **Total atmospheric water vapor/moisture**

-  **Senses mid/high level water vapor**

-  **Senses low/mid level moisture**

-  **Data over land and water**

-  **Microwave over water; GPS and GOES overland **

-  **Best for upper level destabilizing features **

-  **Best for locating moisture features**(**ITCZ**, **fronts**, **etc**)

-  **Resolution = 4km**

-  **Resolution = 45km mapped to 16km**

-  **Available every 15/30 minutes**

-  **Available every 6 hours**

**ITCZ**

**Trop wave**

**front**

**front**

**ITCZ**

**Subtropical   Jet**

**Jet**

**-  -  -  -  -**

**-  -  -  -  -**

**Jet**

**trough**

**trough**

**-  -  -  -  -  -  -  -  -**

**-  -  -  -  -**

**middle   and   high   level   moisture**

**-  -  -  -  - **

**dry**

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## Total Precipitable Water Product Imagery can be found at:

- _[http://](http://amsu.cira.colostate.edu/TPW)__[amsu.cira.colostate.edu](http://amsu.cira.colostate.edu/TPW)__[/TPW](http://amsu.cira.colostate.edu/TPW)_       **30 day loop, 5 day loop of globe; 5 day loop of sectors of globe **
- _[http://amsu.cira.colostate.edu/gpstpw](http://amsu.cira.colostate.edu/gpstpw)_    **Northern part of the Western Hemisphere 3- day loop, every 6 hours:                       **
**Blended Total Precipitable Water (TPW) Product                                                                                        TPW Anomaly Product**

**Total Precipitable Water Product Imagery can be found at:**

*Analysis from the May 20 live over-the-internet VISITview satellite weather briefing of the WMO VL Focus Group of Central and South American countries. *

***Blended  SSM/I - AMSU - GPS  and GOES Sounder Total Precipitable Water (TPW) Product**** *

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## References for Blended Total Precipitable Water Product Applications

- Paper at:  _[ftp://gp16.ssd.nesdis.noaa.gov/pub/Publications/4th_NPOESS_Symposium_extended_abstract_Jan_2008.doc](ftp://gp16.ssd.nesdis.noaa.gov/pub/Publications/4th_NPOESS_Symposium_extended_abstract_Jan_2008.doc)__      __                                                                                                                                              Poster at:  __[ftp://gp16.ssd.nesdis.noaa.gov/pub/Posters/Conferences/NPOESS_Sym_2008_Kusselson R2rev.ppt](ftp://gp16.ssd.nesdis.noaa.gov/pub/Posters/Conferences/NWA_32nd_Annual.ppt)__  _
- Magazine Article:                                                                                                                               CIRA, volume 29, Spring 2008, pages 8-11.   html version at: http://www.cira.colostate.edu/publications/newsletter/spring2008.pdf

**References for the Blended Total Precipitable Water Product**

- Kidder, S.Q. and A.S. Jones, 2007: A blended satellite Total Precipitable Water product for operational forecasting.                                                                                                              *Journal of Atmospheric and Oceanic Tech.*, 20 pages.
- html version at:   http://amsu.cira.colostate.edu/kidder/Blended_TPW.pdf

**This presentation is at:**
**ftp://gp16.ssd.nesdis.noaa.gov/pub/Presentations/Other/WMOSatelliteVisitSession_June_2008.ppt **

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## Experimental Global Blended Total Precipitable Water (TPW) Product

*Experimental Global ****Blended Total Precipitable Water (TPW) Product***

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