Current PSD (Web/Data Status). PSD has undergone major URL restructuring so that all URLs start with http://www.esrl.noaa.gov/psd/ (More Info).
Experimental MJO Forecasts:Total Anomaly Fields
How to interpret forecasts
- Total Anomalies: This simply represents the model forecast minus the model climatology.
The climatology period for each forecast should be looked up in the description of a particular model.
The climatologies are not necessarily the same between models.
- Page Layout: For each separate variable, the model used
for the forecast is a separate row and the verification week (or initial condition) is
a column. Selecting the link for the forecast time will yield plots for each of the models
for that time and variable. Selecting the model will yield plots for each model output time.
- Variable Variables are precipitation, 500mb geopotential height, streamfunction and velocity potential). For streamfunction and velocity potential, some models shoe different levels (150mb versus 250mb). Not all models have precipitation. In those cases,a proxy for precipitation is shown; either OLR or heating. For OLR, positive (blue) anomalies represent rain.
- Model Information on the different variables is available and
should be referred to when interpretating the model forecasts.