List of web-based tools for comparing reanalysis datasets:
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Web-based Reanalysis Intercomparison Tools
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KNMI Climate Explorer
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MERRA Atlas
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MERRA-2 Weather Maps
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JRA-55 Atlas
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The Climate Reanalyzer
GOAT (Geophysical Observation Analysis Tool) is a free MATLAB based tool for the analysis and visualization of various types of geophysical data.
GOAT archives all geophysical data in a consistent format thereby alleviating many of the annoyances related to the inconsistency of spatial and temporal resolutions, naming, units and file formats across the ever growing number of observed and simulated geophysical datasets.
MERRA-2 precipitation rate in WRIT time series plotter
Nice tool. However, the MERRA-2 global average precipitation rate is different from that shown in figure 6 Bosilovich et al, 2017, Atmospheric Water Balance and Variability in the MERRA-2 Reanalysis, J. Clim, 30.
I can send a screen shot and the plot if you need, just email me.
The plotting options I used are:
Dataset: MERRA-2
Variable: Precipitation Rate (note selecting this variable gives an option to select a level, I assume this is irrelevant but selected 1000 hPa)
Time averaging: None
Variable statistic: mean
Grid Point: -90 to 90 N, 0 to 360 E, no mask (All)
Output type: time series
Smoothing: 12 month running mean
Cheers
Andy Barrett
NSIDC, CIRES, University of Colorado at Boulder
Plots
Hi- I'll look at this. Other single variables look fine as a global average for the MERRA-2. I think it might be a data issue for the SH.
RE: MERRA-2 precipitation rate in WRIT time series plotter
There are two global precipitation fields in the MERRA-2 flux data collection. PRECTOT is determined from the model physics and represents the condensation sink of water vapor out of the atmosphere. However, this field is not used for water source/forcing in the land surface. PRECTOTCORR was developed by Reichle et al. to provide observation corrected precipitation to the land surface. Fig 6 is PRECTOT, the modeled precipitation. Make sure that PRECTOTCORR isnt being presented without explaining its purpose.
There is a substantial difference between these two fields over land. These need consideration in any water budget study.
model diagnostics packages
Does anyone know of model diagnostics packages one can get. NCAR has a few. NASA has UV-CDAT. Tx.