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).
 
Physical Sciences Division
Conducting weather and climate research to observe & understand Earth's physical environment, and to improve weather and climate predictions on global-to-local scales.
NOTE: If you are trying to access the Climate Analysis Branch (PSD1) home page, it can now be found at http://www.esrl.noaa.gov/psd/psd1/. For more details, please see our Web Transition Info Page.


image of Lake Powell
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Research Highlights

Arctic Climate Observations
Understanding the mechanisms that control changing Arctic climate
Western Water Assessment
Developing information and products to inform water resource decision-makers
Climate Attribution
Explaining climate conditions and assessing their impacts
Improving Hurricane Intensity Forecasts
Atmospheric observations, laboratory experiments & computer modeling studies to improve measurements of air-sea processes under hurricane conditions
Improving Hydrologic Forecasts & Warnings
Regional experiments to help determine the most useful new tools for improving precipitation & runoff forecasting methods
Coastal Forecast Applications
Assessing new technologies to extract the most useful information for coastal forecast applications development