Michael Casso
Michael Casso is a Physical Scientist with the Woods Hole Coastal and Marine Science Center Gas Hydrates Project.
Science and Products
Filter Total Items: 17
Enhanced CO2 uptake at a shallow Arctic Ocean seep field overwhelms the positive warming potential of emitted methane Enhanced CO2 uptake at a shallow Arctic Ocean seep field overwhelms the positive warming potential of emitted methane
Continued warming of the Arctic Ocean in coming decades is projected to trigger the release of teragrams (1 Tg = 106 tons) of methane from thawing subsea permafrost on shallow continental shelves and dissociation of methane hydrate on upper continental slopes. On the shallow shelves (
Authors
John W. Pohlman, J. Greinert, Carolyn D. Ruppel, A Silyakova, L Vielstadte, Michael Casso, J Mienert, S Bunz
A simple headspace equilibration method for measuring dissolved methane A simple headspace equilibration method for measuring dissolved methane
Dissolved methane concentrations in the ocean are close to equilibrium with the atmosphere. Because methane is only sparingly soluble in seawater, measuring it without contamination is challenging for samples collected and processed in the presence of air. Several methods for analyzing dissolved methane are described in the literature, yet none has conducted a thorough assessment of the...
Authors
C Magen, L. L. Lapham, John W. Pohlman, Kristin N. Marshall, S. Bosman, Michael Casso, J. P. Chanton
Review of Oceanographic and Geochemical Data Collected in Massachusetts Bay during a Large Discharge of Total Suspended Solids from Boston's Sewage-Treatment System and Ocean Outfall in August 2002 Review of Oceanographic and Geochemical Data Collected in Massachusetts Bay during a Large Discharge of Total Suspended Solids from Boston's Sewage-Treatment System and Ocean Outfall in August 2002
During the period August 14-23, 2002, the discharge of total suspended solids (TSS) from the Massachusetts Water Resources Authority sewage-treatment plant ranged from 32 to 132 milligrams per liter, causing the monthly average discharge to exceed the limit specified in the National Pollution Discharge Elimination System permit. Time-series monitoring data collected by the U.S...
Authors
Michael H. Bothner, Bradford Butman, Michael A. Casso
Long-term oceanographic observations in Massachusetts Bay, 1989-2006 Long-term oceanographic observations in Massachusetts Bay, 1989-2006
This data report presents long-term oceanographic observations made in western Massachusetts Bay at long-term site A (LT-A) (42 deg 22.6' N., 70 deg 47.0' W.; nominal water depth 32 meters) from December 1989 through February 2006 and long-term site B (LT-B) (42 deg 9.8' N., 70 deg 38.4' W.; nominal water depth 22 meters) from October 1997 through February 2004 (fig. 1). The observations...
Authors
Bradford Butman, P. Soupy Alexander, Michael H. Bothner, Jonathan Borden, Michael A. Casso, Benjamin T. Gutierrez, Mary E. Hastings, Frances L. Lightsom, Marinna A. Martini, Ellyn T. Montgomery, Richard R. Rendigs, William S. Strahle
The coral reef of South Moloka'i, Hawai'i— Portrait of a sediment-threatened fringing reef The coral reef of South Moloka'i, Hawai'i— Portrait of a sediment-threatened fringing reef
Moloka‘i, with the most extensive coral reef in the main Hawaiian Islands, is especially sacred to Hina, the Goddess of the Moon. As Hinaalo, she is the Mother of the Hawaiian people; as Hinapuku‘a, she is the Goddess of Fishermen; and in the form Hina‘opuhalako‘a, she is the Goddess who gave birth to coral, coral reefs, and all spiny marine organisms. Interdependence between the reef’s...
Sedimentary properties of shallow marine cores collected in June and September 2006, Hanalei Bay, Kaua'i, Hawai'i Sedimentary properties of shallow marine cores collected in June and September 2006, Hanalei Bay, Kaua'i, Hawai'i
Sedimentary facies, short-lived isotopes 7Be, 137Cs, and 210Pb, and magnetic properties of sediment cores in Hanalei Bay, Kaua‘i, Hawai‘i, were used to assess sediment sources and patterns of deposition associated with seasonal flooding of the Hanalei River. Sediment cores were collected from the seafloor in June and September of 2006 to supplement similar data collected during the...
Authors
Amy E. Draut, Michael H. Bothner, Richard L. Reynolds, Olivia C. Buchan, Susan A. Cochran, Michael A. Casso, Sandra M. Baldwin, Harland L. Goldstein, Jiang Xiao, Michael E. Field, Joshua B. Logan
Science and Products
Filter Total Items: 17
Enhanced CO2 uptake at a shallow Arctic Ocean seep field overwhelms the positive warming potential of emitted methane Enhanced CO2 uptake at a shallow Arctic Ocean seep field overwhelms the positive warming potential of emitted methane
Continued warming of the Arctic Ocean in coming decades is projected to trigger the release of teragrams (1 Tg = 106 tons) of methane from thawing subsea permafrost on shallow continental shelves and dissociation of methane hydrate on upper continental slopes. On the shallow shelves (
Authors
John W. Pohlman, J. Greinert, Carolyn D. Ruppel, A Silyakova, L Vielstadte, Michael Casso, J Mienert, S Bunz
A simple headspace equilibration method for measuring dissolved methane A simple headspace equilibration method for measuring dissolved methane
Dissolved methane concentrations in the ocean are close to equilibrium with the atmosphere. Because methane is only sparingly soluble in seawater, measuring it without contamination is challenging for samples collected and processed in the presence of air. Several methods for analyzing dissolved methane are described in the literature, yet none has conducted a thorough assessment of the...
Authors
C Magen, L. L. Lapham, John W. Pohlman, Kristin N. Marshall, S. Bosman, Michael Casso, J. P. Chanton
Review of Oceanographic and Geochemical Data Collected in Massachusetts Bay during a Large Discharge of Total Suspended Solids from Boston's Sewage-Treatment System and Ocean Outfall in August 2002 Review of Oceanographic and Geochemical Data Collected in Massachusetts Bay during a Large Discharge of Total Suspended Solids from Boston's Sewage-Treatment System and Ocean Outfall in August 2002
During the period August 14-23, 2002, the discharge of total suspended solids (TSS) from the Massachusetts Water Resources Authority sewage-treatment plant ranged from 32 to 132 milligrams per liter, causing the monthly average discharge to exceed the limit specified in the National Pollution Discharge Elimination System permit. Time-series monitoring data collected by the U.S...
Authors
Michael H. Bothner, Bradford Butman, Michael A. Casso
Long-term oceanographic observations in Massachusetts Bay, 1989-2006 Long-term oceanographic observations in Massachusetts Bay, 1989-2006
This data report presents long-term oceanographic observations made in western Massachusetts Bay at long-term site A (LT-A) (42 deg 22.6' N., 70 deg 47.0' W.; nominal water depth 32 meters) from December 1989 through February 2006 and long-term site B (LT-B) (42 deg 9.8' N., 70 deg 38.4' W.; nominal water depth 22 meters) from October 1997 through February 2004 (fig. 1). The observations...
Authors
Bradford Butman, P. Soupy Alexander, Michael H. Bothner, Jonathan Borden, Michael A. Casso, Benjamin T. Gutierrez, Mary E. Hastings, Frances L. Lightsom, Marinna A. Martini, Ellyn T. Montgomery, Richard R. Rendigs, William S. Strahle
The coral reef of South Moloka'i, Hawai'i— Portrait of a sediment-threatened fringing reef The coral reef of South Moloka'i, Hawai'i— Portrait of a sediment-threatened fringing reef
Moloka‘i, with the most extensive coral reef in the main Hawaiian Islands, is especially sacred to Hina, the Goddess of the Moon. As Hinaalo, she is the Mother of the Hawaiian people; as Hinapuku‘a, she is the Goddess of Fishermen; and in the form Hina‘opuhalako‘a, she is the Goddess who gave birth to coral, coral reefs, and all spiny marine organisms. Interdependence between the reef’s...
Sedimentary properties of shallow marine cores collected in June and September 2006, Hanalei Bay, Kaua'i, Hawai'i Sedimentary properties of shallow marine cores collected in June and September 2006, Hanalei Bay, Kaua'i, Hawai'i
Sedimentary facies, short-lived isotopes 7Be, 137Cs, and 210Pb, and magnetic properties of sediment cores in Hanalei Bay, Kaua‘i, Hawai‘i, were used to assess sediment sources and patterns of deposition associated with seasonal flooding of the Hanalei River. Sediment cores were collected from the seafloor in June and September of 2006 to supplement similar data collected during the...
Authors
Amy E. Draut, Michael H. Bothner, Richard L. Reynolds, Olivia C. Buchan, Susan A. Cochran, Michael A. Casso, Sandra M. Baldwin, Harland L. Goldstein, Jiang Xiao, Michael E. Field, Joshua B. Logan