slide1 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Evaluation of NASA’s Global Water Cycle Data: PowerPoint Presentation
Download Presentation
Evaluation of NASA’s Global Water Cycle Data:

Loading in 2 Seconds...

play fullscreen
1 / 1

Evaluation of NASA’s Global Water Cycle Data: - PowerPoint PPT Presentation


  • 92 Views
  • Uploaded on

Evaluation of NASA’s Global Water Cycle Data: Interannual Variability, Interdecadal Changes and Trends Project team: Michael Bosilovich ( Michael.Bosilovich@nasa.gov ), Franklin R. Robertson Junye Chen and Robert Adler.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

Evaluation of NASA’s Global Water Cycle Data:


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

Evaluation of NASA’s Global Water Cycle Data:

Interannual Variability, Interdecadal Changes and Trends

Project team: Michael Bosilovich (Michael.Bosilovich@nasa.gov), Franklin R. Robertson Junye Chen and Robert Adler

Science Issue: Quantifying and interpreting low frequency variability and trends in the global water and energy cycles can be improved by systematic analyses to remove model and observationaluncertainty.

Approach: By evaluating statistical properties of multiple data sets, diagnosing physical mechanisms in process studies, and testing via model experiments we quantify / reconcile in observational, algorithm, model uncertainty and identify opportunities for improvements

Satellite-based data: GPCP, TRMM, SSMI, A-Train, NOAA PO

Other data: CEOP In-situ stations, CPC Gauge Prec.

Models: MERRA and existing reanalyses

Study Period: 1979-Present

Project status:

Year 1 & 2 complete – Precipitation evaluation of reanalyses and global merged data sets submitted for publication (Bosilovich et al.) ; Quantified ENSO ocean LHF signal in satellite & reanalysis data sets (In submission GRL)

Year 3 – Actively contributing to NEWS Integrations project 1, 2, and 3, and will contribute MERRA data as it becomes available. Basin scale evaluations of reanalysis and observed water budgets will be conducted to support the NEWS integration tasks. Evaluate the sensitivity of MERRA system to the observing system. Currently relating interannual ocean net surface heat flux to SST changes using SSM/I, SRB-based flux estimates.

NEWS linkages: (pull, push, collaborate, external)

Adler: Precipitation retrievals and diagnostics

Roads: Reanalysis water and energy budgets

Clayson /Curry: in ocean LHF evaluation via FSU student (Brent Roberts)

Betts: Land process studies, MERRA

Olson: Atmospheric heating

Peters-Lidard: Land fluxes

Bosilovich, Chen, Robertson and Adler: Evaluation of Precipitation in Reanalyses. (Submitted to JAMC)

Robertson: Seasonal Evolution of ENSO-Related Ocean Latent Heat Fluxes,

Robertson, Lu, Miller and Bosilovich (Submit to GRL Dec2007)

Mississippi River Basin precipitation from insitu gauge observations and experimental satellite-era retrospective-analysis data from MERRA.

Updated: Nov. 9, 2007