NOAA’s Global Drifter Program Partners with the National Data Buoy Center to Support US Navy-funded Spotter Drifter Deployments

NOAA’s Global Ocean Monitoring and Observation Division and Global Drifter Program recently extended a helping hand to support deployment of commercial Spotter drifters, supported by the U.S. Navy’s Office of Naval Research. These specialized drifters are designed to measure waves, in addition to winds and sea surface temperature, providing valuable data to scientists to be used in hurricane forecast models.

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Image from the P-3 Hurricane Hunter Aircraft of Hurricane Harvey. Photo Credit: NOAA.

NOAA Hurricane Model Performance is Evaluated for the First Time in Predicting Rainfall from 2017 Hurricane Harvey

A recent study published in the journal Atmosphere evaluated for the first time, how well NOAA’s regional hurricane model was able to forecast the location and amount of devastating rainfall in 2017’s Hurricane Harvey. The Hurricane Weather Research and Forecasting (HWRF) model predicted the realistic total rainfall and the location of the maximum rainfall of Hurricane Harvey, which were the most devastating impacts of the storm’s landfall in coastal Texas.

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The Saharan Air Layer: What is it? Why does NOAA track it?

Originally Published Wednesday, June 24, 2020 at NOAA NESDIS

As we move through the 2020 Atlantic Hurricane Season, you will no doubt hear a lot about the Saharan Air Layer—a mass of very dry, dusty air that forms over the Sahara Desert during the late spring, summer and early fall. This layer can travel and impact locations thousands of miles away from its African origins, which is one reason why NOAA uses the lofty perspective of its satellites to track it.

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The New Tools Revolutionizing Vibrio Science

According to AOML scientists, the advancements made in genomics and whole genome sequencing has completely redefined the understanding of Vibrio. These advances have helped provide a clearer picture of how bacteria spread, emerge, and cause disease. Vibrio is a genus of bacteria that has a strong affinity for the environmental conditions in freshwater and marine […]

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AOML Scientists Tackle one of the Most Challenging Problems in U.S. Seasonal Rainfall Prediction

In a recent article published in Geophysical Research Letters, AOML and CIMAS scientists investigated U.S. rainfall variability, focusing on the late summer to mid-fall (August-October) season. The main goal of the study was to identify potential predictors of U.S. precipitation during August-October and to explore the underlying physical mechanisms.

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An AOML coral researcher uses a photo mosaic to locate a bleached coral head on a reef in the Florida Keys. Image credit: NOAA

AOML Scientists Awarded the Department of Commerce Bronze Medal

AOML is proud to recognize the recent achievements of our outstanding scientists who were recently awarded the Department of Commerce Bronze Medal for outstanding contributions which have increased the efficiency and effectiveness of NOAA. Kelly Goodwin was honored for her Leadership in the development of the Omics program in NOAA. Ian and Derek are honored for their contributions to addressing Stoney Coral Tissue Loss Disease in the FL Keys.

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CIMAS coral researcher Stephanie Rosales is exploring how physical habitat changes impact corals. Photo Credit: NOAA AOML.

Two Bacteria Types Linked With Stony Coral Tissue Loss Disease Hint At How This Deadly Disease Might Spread

New research on stony coral tissue loss disease reveals similar “bacterial signatures” among sick corals and nearby water and sediments for the first time. Results hint at how this deadly disease might spread, and which bacteria are associated with it, on Florida’s Coral Reef.

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Leticia Barbero (University and Miami and NOAA AOML), chief scientist on the Gulf of America and East Coast Carbon Cruise, holding a sample from the CTD.

Research: Ocean Acidification Varies Around North America with Hot Spots Found in Northeast and West Coast Waters

New NOAA and partner research comparing ocean acidification around North America shows that the most vulnerable coastal waters are along the northern part of the east and west coasts. While previous research has looked at specific regions, the new study appearing in Nature Communications, is the first in-depth comparison of ocean acidification in all North American coastal ocean waters.

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Vertical Turbulent Cooling of the Mixed Layer in the Atlantic ITCZ and Trade Wind Regions

Foltz, G. R., Hummels, R., Dengler, M., Perez, R. C., & de Araujo, M. (2020). Vertical turbulent cooling of the mixed layer in the Atlantic ITCZ and trade wind regions. Journal of Geophysical Research: Oceans, 125, e2019JC015529. https://doi.org/10.1029/2019JC015529

Abstract:
The causes of the seasonal cycle of vertical turbulent cooling at the base of the mixed layer are assessed using observations from moored buoys in the tropical Atlantic Intertropical Convergence Zone (ITCZ) (4N, 23W) and trade wind (15N, 38W) regions together with mixing parameterizations and a one-dimensional model. At 4N the parameterized turbulent cooling rates during 2017–2018 and 2019 agree with indirect estimates from the climatological mooring heat budget residual: both show mean cooling of 25–30W/m^2 during November–July, when winds are weakest and the mixed layer is thinnest, and 0–10W/m^2 during August–October. Mixing during November–July is driven by variability on multiple time scales, including subdiurnal, near-inertial, and intraseasonal…

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