March 29, 2024

Fuel for Hurricane Ian: Fearsome Power Comes From the Ocean

The map above programs sea surface temperatures (SSTs) as determined on September 26 by a mix of satellite and ocean instruments and processed by NASA researchers. The maps above illustrate sea surface temperature level anomalies on September 15 (left) and September 26 (right). They reveal how much the surface layer was above or below the long-term average temperature for this time of year. Having actually given up much of its heat to the environment, the rain cools the sea surface a bit. At the same time, the winds and waves of a hurricane distribute warm surface area water and bring up cooler water from the ocean depths.

Sea Surface Temperature, September 26, 2022.
Warm seas supply fuel for extreme storms, and can then be cooled by them.
Even though tropical cyclones are atmospheric phenomena, much of their fearsome power actually originates from the ocean. The seas are abundant sources of moisture to feed growing storm clouds. Simply as seriously, they are also huge repositories of thermal energy that can move from the sea to the sky.
On September 27, 2022, as Hurricane Ian lashed western Cuba and headed for the west coast of Florida it moved over a large fuel source in the Gulf of Mexico. While sea surface area temperatures are just among the considerable factors influencing typhoons, they are a reasonable predictor of the preparedness of the ocean to sustain them.

The map above shows sea surface temperature levels (SSTs) as determined on September 26 by a combination of satellite and ocean instruments and processed by NASA researchers. Meteorologists normally agree that SSTs should be above 82.04 ° Fahrenheit (27.8 ° Celsius) to sustain and heighten typhoons, cyclones, and tropical cyclones. Surface area waters above that limit are represented in red on the map.
Proof for the transfer of energy between the ocean and environment frequently reveals up in the wake of a storm, actually. As a cyclone or tropical storm goes through a parcel of ocean, it can cool the regional sea surface area for a number of days.
Sea Surface Temperature Anomaly, September 15– 26, 2022.
The maps above illustrate sea surface temperature level abnormalities on September 15 (left) and September 26 (right). They show how much the surface area layer was above or below the long-term average temperature for this time of year. Between September 3 and 10, the storm that became Hurricane Earl traveled through the northwest Atlantic, leaving a path of cooler water in its wake. Next, Hurricane Fiona– which traced a course of destruction across Puerto Rico, the Dominican Republic, Bermuda, and Newfoundland– likewise left a cool spot in its wake as it moved north in between September 15-26.
Water vapor naturally cools as it rises through the environment and after that falls back onto the sea as rainwater. Having actually quit much of its heat to the atmosphere, the rain cools the sea surface a bit. Simultaneously, the winds and waves of a typhoon disperse warm surface area water and bring up cooler water from the ocean depths.
In theory, the cooler water increasing to the surface area needs to make it less likely for a new storm to establish or intensify in the exact same area in the following days. However, the waters of the North Atlantic were not always cool after Earl and Fiona, just at a lower temperature compared to before.
The data for all of these maps originate from the MUR Global Foundation Sea Surface Temperature Analysis, produced at NASAs Jet Propulsion Laboratory. The system combines observations from a number of satellite instruments, consisting of the NASA Advanced Microwave Scanning Radiometer-EOS (AMSR-E), the Moderate Resolution Imaging Spectroradiometer (MODIS) on the NASA Aqua and Terra platforms, the U.S. Navy microwave WindSat radiometer, the Advanced Very High Resolution Radiometer (AVHRR) on numerous NOAA satellites, and from in situ observations from NOAA.
Editors Note: NOAA and other federal and state firms lead the forecasting of and response to hurricanes in the United States, with NASA playing a supporting function in developing experimental tools and supplying key information to those firms. NASA likewise works to improve the flow of information and assistance foreign clinical institutions, federal governments, and worldwide groups as they generate data products from easily available NASA information. The NASA Disasters program contributes with high-value or special products to match the actions of operational firms and local federal governments to support decision-making during crises and also in catastrophe danger decrease.
NASA Earth Observatory images by Joshua Stevens, using data from the Multiscale Ultrahigh Resolution (MUR) project and info from the National Hurricane Center.