Skip to content

Research Highlight

Impacts of the North Atlantic biases on the upper troposphere/lower stratosphere over the extratropical North Pacific

February 15, 2024 – The interplay between the ocean and atmosphere plays a crucial role in shaping weather patterns and temperatures around the world. Yet, the winter upper troposphere/lower stratosphere (UTLS) temperature/vertical motion response over the extratropical North Pacific induced by North Atlantic changes is not well understood. Using GFDL’s high-resolution climate model CM2.5, the authors corrected the North Atlantic Ocean circulation biases to unravel the wintertime atmospheric impacts.

Research Highlight

Ocean biogeochemical fingerprints of fast-sinking tunicate and fish detritus

February 8, 2024 – Marine ecosystems play a critical role in the global carbon cycle through the food web regulation of air-sea carbon fluxes and the transfer of particulate matter from the upper oceans to depth. Recent evidence has suggested that the detritus from fishes and gelatinous zooplankton, specifically the pelagic tunicates such as salps and pyrosomes, may have a disproportionate impact on the ocean’s biological pump due to them sinking approximately ten times faster than bulk detritus.

News

Detection of AMOC changes and their potential impact on sea level and storm surges over the U.S. East Coast

February 6, 2024 – Liping Zhang and Hiroyuki Murakami, scientists at GFDL, have been awarded funding for a new climate projections project that will spotlight the critical issue of extreme sea level events along the U.S. East Coast, emphasizing their societal impact. These events, often fueled by storm surges during extreme weather occurrences, substantially threaten lives and infrastructure in coastal regions.

Research Highlight

The Importance of Dynamic Iron Deposition in Projecting Climate Change Impacts on Pacific Ocean Biogeochemistry

December 22, 2023 – Projections of future nutrient limitation and primary production have implications for fisheries management. The authors used GFDL’s Earth system model, ESM4.1, to explore climate-driven changes in the deposition of dust and iron from the atmosphere to the ocean under a range of climate change scenarios, in an attempt to understand where the “fish food” is going to be and why.

Research Highlight

Greenhouse gas forcing and climate feedback signatures identified in hyperspectral infrared satellite observations

December 14, 2023 – Greenhouse gas emissions from human activities trap heat (radiative forcing) and cause global warming. This warming is amplified or diminished by feedbacks in the climate system. We had limited direct observations of global greenhouse gas forcing and feedbacks, despite the fact that they are the primary causes of climate change.

News

Seasonal hurricane predictions at GFDL

December 6, 2023 – If you live along a U.S. coast, you’re likely familiar with NOAA’s seasonal hurricane forecasts. Released each year in May (and updated in August for the Atlantic region), these forecasts provide an important preview of what each year’s Atlantic and Pacific hurricane seasons will bring. “Seasonal predictions provide valuable lead time for communities to prepare for potential hurricanes,” said Hiro Murakami, a research physical scientist at GFDL.

Research Highlight

Skillful multiyear to decadal predictions of sea level in the North Atlantic Ocean and U.S. East Coast

December 1, 2023 – The occurrence of exceptionally high sea levels can cause severe coastal flooding and inundation, threatening lives and infrastructure in the coastal regions. High sea level also alters the coastal environment, moving barrier islands and cutting channels through them, impacting forests and crops, inundating the coastline with salt water, and damaging habitats essential to support wildlife.

Research Highlight

Anthropogenic forcing changes coastal tropical cyclone frequency

November 17, 2023 – Anthropogenic activities have been affecting our climate since the industrial revolution. The effect of anthropogenic climate change on tropical cyclones (TCs) is of particular concern because of their catastrophic damage at landfall and their relatively frequent occurrence compared to other natural hazards. However, attributing a regionally observed change in tropical cyclone frequency (TCF) to anthropogenic climate change is notoriously challenging for two main reasons.

Award

Tom Delworth Honored with the 2023 Presidential Rank Award

Tom DelworthNovember 13, 2023Tom Delworth, a Senior Scientist and leader of the Seasonal to Decadal Variability and Predictability division at GFDL, has been honored with the 2023 Presidential Rank Award.  One of the most prestigious awards in the civil service, it recognizes the important contributions of public servants across the federal government. “The Presidential Rank Awards highlight public servants who exemplify integrity, exceptional leadership, and a relentless commitment to the American people”, according to OPM Director Kiran Ahuja.

News

Forecasting extreme temperatures months in advance

the sun
October 24, 2023
Heat waves and cold spells aren’t always as dramatic as other weather events, such as hurricanes and tornadoes, but they can be just as dangerous. Exposure to extreme heat can cause heat exhaustion and heat stroke, and can lead to flare-ups of chronic conditions, including asthma and cardiovascular disease.

Award

Vaishali Naik Honored with Mid-Career Award from AGU

Vaishali NaikOctober 13, 2023Congratulations to Vaishali Naik (Research Physical Scientist), recipient of the 2023 Piers J. Sellers Global Environmental Change Mid-Career Award from the American Geophysical Union (AGU). With this award, AGU recognizes Dr. Naik for her “outstanding contributions in research, educational, or societal impacts in the area of global environmental change, especially through interdisciplinary approaches.”