Tag: alexey mishonov

New Research Finds Climate-Critical Ocean Current System is Slowing

March 11, 2024

The global ocean has been heating up for decades, with records from the 1960s reporting a substantial rise in upper ocean heat content. Rising ocean temperatures also affect ocean currents, though there has yet to be a consensus on the strength or extent of those changes, or whether these changes will continue in the future. However, a new paper led by Earth System Science Interdisciplinary Center (ESSIC) scientist Alexey Mishonov documents, for the first time, a significant slowing of the Atlantic Meridional Overturning Circulation (AMOC), a crucial ocean current system that plays a vital role in regulating Earth’s climate.

WOA23 annual mean sea water temperature for the 2015-2022 time period on 0.25 grid.

World Ocean Atlas 2023 Released

February 20, 2024

ESSIC/CISESS scientist Alexey Mishonov is one of the authors of the newly released World Ocean Atlas 2023. The World Ocean Atlas 2023 (WOA23) is a set of temperature, salinity, oxygen, phosphate, silicate, and nitrate means based on profile data from the World Ocean Database (WOD). WOA23 includes approximately 1.8 million new oceanographic casts added to the WOD since WOA18’s release, as well as renewed and updated quality controls. The database can be used to create boundaries and/or initial conditions for a variety of ocean models, verify numerical simulations of the ocean, and corroborate satellite data.

Figure 1: NCEI regional climatologies completed to date marked on the sea surface temperature field from World Ocean Atlas (WOA18). The abbreviations of the regional climatology names are: ARC - Arctic Regional Climatology, EAS - East Asian Seas, GINS - Greenland, Iceland, and Norwegian Seas; GOM - Gulf of Mexico version 2; NEP - Northeast Pacific, NNP - Northern North Pacific; NWA - Northwest Atlantic, and SWNA - Southwest North Atlantic.

High-Resolution Regional Ocean Climatologies with the Northwest Atlantic as an Example: A Review

February 15, 2024

ESSIC scientist Alexey Mishonov is lead author on a new paper in Journal of Marine Science Research and Oceanography titled “High-Resolution Regional Ocean Climatologies with the Northwest Atlantic as an Example: A Review”.

Figure: The within-year variation of SST, with 2023 values shown in black.

New Record Ocean Temperatures and Related Climate Indicators in 2023

January 22, 2024

ESSIC/CISESS scientist Alexey Mishonov along with other scientists from the United States, China, New Zealand and Italy have a new article in the journal Advances in Atmospheric Science documenting the record highs in the global ocean set in 2023.

Updated High-Resolution Northern North Pacific Regional Climatology Released

November 17, 2023

On November 7th, ESSIC/CISESS Scientist Alexey Mishonov and the National Centers for Environmental Information (NCEI) released the Northern North Pacific regional climatology, version 2. This is a collection of high-resolution quality-controlled temperature and salinity fields retrieved from the latest World Ocean Database (WOD23) on standard depth levels from the sea surface to 5,200 m depth covering the period from 1955 to 2022.

Another Year of Record Heat for the Oceans

January 13, 2023

ESSIC/CISESS scientist Alexey Mishonov is co-author on a new paper in Advances in Atmospheric Sciences titled “Another Year of Record Heat for the Oceans”.

Effects of the Pandemic on Observing the Global Ocean

January 4, 2023

ESSIC/CISESS scientists Li-Qing Jiang, Alexander Kozyr, and Alexey Mishonov are co-authors on a new paper in Bulletin of the American Meteorological Society titled “Effects of the Pandemic on Observing the Global Ocean”.

The University of Maryland ranked No. 57 overall, No. 28 among U.S. institutions and No. 12 among U.S. public institutions in U.S. News & World Report’s list of 2022-23 Best Global Universities, which focuses on the global research and reputation of 2,000 top schools. Photo by John T. Consoli

NCEI Employee Awards for CISESS Scientists

December 19, 2022

The National Centers for Environmental Information (NCEI) Employee Awards Ceremony was held on December 6th.

Figure: a-c) Station maps of cp profiles during XIXIMI 4–6 cruises; d-f) vertical sections of cp (m􀀀 1) at stations between red lines in a-c) along 24◦N in 2015–2017; g-i) maps of bottom cp in 2015–2017. Arrows and red lines in g-i indicate the line of stations used for sections shown in d-f. Bold vertical lines in the sections (d-f) indicate the location of profiles. The outer edge of light blue shading on the station maps (a-c) denotes 1000 m depth.

Mishonov Studies Nepheloid Layers in the Gulf of Mexico

November 30, 2022

Alexey Mishonov, ESSIC/CISESS Associate Research Scientist and NOAA Affiliate, has a new article in Marine Geology about the nepheloid layers in the deep Gulf of Mexico.

A screenshot of the cover photo of State of the Climate

ESSIC Scientists Contribute to State of the Climate Report

September 26, 2022

Several ESSIC/CISESS scientists have contributed to State of the Climate, the annual peer-reviewed summary of the global climate published by the American Meteorological Society. The recently-released State of the Climate in 2021 is the 32nd issue and features six chapters authored by dozens of international scientists. ESSIC/CISESS scientists Bob Adler, Jeannette Wild, Alexey Mishonov, Chelsea Parker, and Sinead Farrell contributed to the chapters “Global Climate”, “Global Ocean”, and “The Arctic”.