Hydrography of the eastern South Atlantic Ocean
A13.5 2022 GO-SHIP/CO2 Repeat Hydrography Cruise
Scientists from many institutions will embark on a journey aboard the NOAA ship Ronald H. Brown in the eastern South Atlantic Ocean. This voyage is part of the U.S. Global Ocean and Repeat Hydrography Program (U.S. GO-SHIP), which aims to re-occupy certain lines along the ocean in order to quantify changes in the distribution and physical transport of heat, carbon dioxide, and other climatologically important and oceanographically interesting properties. The A13.5 line was last traversed in 2010, so the measurements made this year will allow for scientists to understand how properties have changed in this section of the ocean in the last decade.
The A13.5 voyage will depart from Praia, Cape Verde on January 5, 2021. The voyage will take the ship along the coast of western Africa, turning south when it reaches the prime meridian (0 degrees longitude). The voyage will take the ship and its occupants across the equator, with the scientists performing full depth measurements to the ocean floor of water properties along the ship track and collecting water samples for measurement of various water properties. In the last few days of sampling, the group will reach the Antarctic Circumpolar Current, the largest ocean current. The ship will end its voyage in Recife, Brazil in mid-February 2021. In addition to making regular measurements along the track, a collection of autonomous profiling floats will be deployed for the Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) and the Global Ocean Biogeochemistry Array (GO-BGC) programs.
Please join along on the journey by following the expedition blog!
Chief scientists: Denis Pierrot and Zachary Erickson
South Atlantic Expedition Logs
January 10, 2022 – Canceled
Some sad news from Cabo Verde 10 January 2022 Location: 42.3 N, 71.1 W Some sad news from the A13.5 cruise: unfortunately, we will not be able to sail this year. A confluence of unfortunate events, including a generator on the ship requiring pretty major repairs as...
January 4, 2022 – On Shore
Spending a few days in Cabo Verde January 4, 2022 Location: 14.9 N, 23.5 WAs I’ve mentioned in previous blogs, we are spending a few days in Cabo Verde, which is an island off the west coast of the African continent. Originally formed by volcanoes about 40 million...
January 2, 2022—Travel
Happy new year from Cabo Verde!January 2, 2022 Current location: 14.9 N, 23.5 WHappy new year from Cabo Verde! Much of the science team for the research cruise has been traveling over the last few days. Although there’s been some drama with canceled flights and lost...
Introducing Lily Dove, who will be blogging for the A13.5 expeditionDecember 26, 2021 Current location: 29.9 N, 81.3 WHello world! My name is Lily Dove and I am thrilled to be blogging for the A13.5 expedition. I am especially excited to have some classrooms from...