This tool was created by the NASA Goddard Space Flight Center Earth Sciences Data and Information Services Center (GES DISC), Greenbelt, Md., to help provide valuable hurricane research information, as well as easy data access to a collection of multi-sensor datasets.

Before selecting and downloading the tropical cyclone data of most interest, the NASA Goddard Hurricane Data Portal will assist researchers to investigate key parameters for tropical cyclones, hurricanes and typhoons around the world.

The datasets available include:

+ Global Merged Infra-Red (IR) Brightness Temperature

+ Tropical Rainfall Measuring Mission (TRMM) precipitation

+ TRMM Microwave Imager (TMI) sea surface temperature (SST)

+ NASA's daily Quick Scatterometer (QuikSCAT) ocean surface wind

+ NCEP Reanalysis sea level pressure (SLP) and NCEP Reanalysis winds.

The Hurricane Data Analysis Tool (formerly the TRMM QuikScat Analysis tool) allows users to look at a hurricane event with current functions that include area (latitude-longitude) and time series (area averaging) plots and their overlays, as well as animations.

The website will also help researchers investigate other meteorological phenomena, such as, precipitation, monsoon events, mesoscale convective systems, etc.

Other features include:

+ Current tropical analysis maps and profiles from NASA satellites, such as atmospheric temperatures (at various levels) and rainfall totals ranging from 3 to 24 hours.

+ Surface pressure, relative humidity, water vapor and Geopotential Height from the NASA's Aqua Atmospheric Infrared Sounder (AIRS) instrument.

"Geopotential height" is a vertical coordinate referenced to Earth's mean sea level - an adjustment to geometric height (elevation above mean sea level) using the variation of gravity with latitude and elevation.

The images are generated daily with the latest available data. Past hurricane events can be viewed in the archive that contains pre-generated images from multiple datasets including true-color images from MODIS and vertical profiles of water vapor and temperature from the AIRS instrument.

"In addition, we plan to feature useful data from other NASA satellites that users have requested and are anxiously waiting for," said Steve Kempler, GES DISC Project Manager at Goddard.

"Users will be able to access cloud properties from the Moderate Resolution Spectroradiometer (MODIS) that flies on NASA's Terra and Aqua satellites; and look at animations of surface reflection, ozone and clouds from the Ozone Monitoring Instrument (OMI) that flies on NASA's Aura satellite." OMI is an instrument supplied by The Netherlands.

The newest addition to the collection of available data products is the online visualization of the global merged-IR product. "With a web browser and few mouse clicks, users can produce visualizations for all 8 years and 4.5 TB (terabytes) of Merged InfraRed (IR) Brightness Temperature data and generate black and white IR imagery and animation without downloading any software and data," Kempler said.

Hurricane season in the Atlantic Ocean may run from June 1 to November 30, but tropical cyclones happen around the world at all times during the year, so these tools will be very popular year 'round.

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Related Links
NASA's on-line Hurricane Data Analysis Tool
NASA Goddard Hurricane Data Portal
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