Feature Publication Archive
Dungeness crab larvae (a) and magnified segment of its damaged shell (b) from Bednaršek et al. (2020).
Bednaršek, N., R.A. Feely, M.W. Beck, S.R. Alin, S.A. Siedlecki, P. Calosi, E.L. Norton, C. Saenger, J. Štrus, D. Greeley, N.P. Nezlin, and J.I. Spicer (2020): Exoskeleton dissolution with mechanoreceptor damage in larval Dungeness crab related to severity of present-day ocean acidification vertical gradients. Sci. Total Environ., 716, 136610. https://doi.org/10.1016/j.scitotenv.2020.136610
With annual revenues up to $220 million, the Dungeness crab (Metacarcinus magister) is one of the most valuable commercial fisheries on the US West Coast. Yet, rapid intensification of ocean acidification (OA) along the US West Coast is reducing natural habitats of crabs by increasing corrosiveness of the water due to the uptake of human-generated CO2. The steady increase in seawater CO2 can trigger multiple impacts that are most significant in the upper water column that is inhabited by Dungeness crab larvae, one of the most vulnerable life stages of the 4-year long life cycle of... more »
Stars show locations where sei whales, similar to this mother and calf, were detected.
Nieukirk, S.L., D.K. Mellinger, R.P. Dziak, H. Matsumoto, and H. Klinck (2020): Multi-year occurrence of sei whale calls in North Atlantic polar waters. J. Acoust. Soc. Am., 147(3), 1842–1850. https://doi.org/10.1121/10.0000931
The sei whale is a large baleen whale, in the same genus as the blue whale, found in most of the world's oceans outside the Arctic. From 2009 to 2014, we searched acoustically for sei whales off the northeast coast of Greenland on the edge of the Arctic Ocean. We did this by deploying hydrophones (underwater microphones) and recording ambient sound, then searching the resulting recordings for calls of sei whales. We heard many sei whale calls every summer in regions 600 km (400 mi) north of where they were known to routinely occur. We do not know if these detections surprisingly far north... more »
November storm in the western North Atlantic during the first North Atlantic Aerosols and Marine Ecosystem Cruise. Photo credit: Christien Laber
NAAMES research cruise tracks & timing.
Quinn, P.K., T.S. Bates, D.J. Coffman, L. Upchurch, J.E. Johnson, R. Moore, L. Ziemba, T.G. Bell, E.S. Saltzman, J. Graff, and M.J. Behrenfeld (2019): Seasonal variations in western North Atlantic remote marine aerosol properties. J. Geophys. Res. Atmos., 124(24), 14,240–14,261. doi: 10.1029/2019JD031740
Wave-breaking at the ocean surface transports pockets of air from the atmosphere into the upper few meters of the ocean. This air forms bubbles and as these bubbles rise to the ocean surface they pick up organic compounds associated with ocean biological activity. When the bubbles burst at the surface they release atmospheric aerosols containing those organics plus inorganic sea salt. In addition, dimethylsulfide (DMS), derived from phytoplankton, is transferred from the ocean to the atmosphere. Once in the atmosphere, it is oxidized to form sulfate aerosol. Ocean-derived organics and... more »
Rainfall changes due to warming of the Indo-Pacific Ocean and corresponding changes in the Madden Julian Oscillation. The shining sun depicts areas of declining rainfall while the rain clouds show where rainfall is increasing. Credit: Roxy M. Koll, Indian Institute of Tropical Meteorology, et al., Nature
Roxy, M.K., P. Dasgupta, M.J. McPhaden, T. Suematsu, C. Zhang, and D. Kim, 2019: Twofold expansion of the Indo-Pacific warm pool warps the MJO life cycle. Nature, 575, 647-651. https://doi.org/10.1038/s41586-019-1764-4
A new study published in the journal Nature (Roxy et al., 2019) shows that warming of the Indo-Pacific Ocean is altering rainfall patterns across the globe, contributing to declines in rainfall along the U.S. West Coast and parts of the East Coast. The research, involving NOAA scientists and others from India, Japan, and the U.S., reports that the warm pool of water spanning the western Pacific and eastern Indian Ocean has doubled in size over the past century. This “Indo-Pacific warm pool”, which is already the warmest part of the global ocean, is expanding each year by an area the size... more »
Many of the PMEL staff stopped by the NOAA booth to give lightning talks and network with other NOAA staff.
Buck, J.J.H., et al. (2019): Ocean data product integration through innovation—The next level of data interoperability. Front. Mar. Sci., 6, 32, Oceanobs19: An Ocean of Opportunity. https://doi.org/10.3389/fmars.2019.00032
Tanhua, T., et al. (2019): Ocean FAIR Data Services. Front. Mar. Sci., 6, 440, Oceanobs19: An Ocean of Opportunity. https://doi.org/10.3389/fmars.2019.00440
Vance, T.C., et al. (2019): From the oceans to the cloud: Opportunities and challenges for data, models, computation and workflows. Front. Mar. Sci., 6, 211, Oceanobs19: An Ocean of Opportunity. https://doi.org/10.3389/fmars.2019.00211
Meinig, C., et al. (2019): Public private partnerships to advance regional ocean observing capabilities: A Saildrone and NOAA-PMEL case study and future considerations to expand to global scale observing. Front. Mar. Sci., 6, 448, Oceanobs19: An Ocean of Opportunity. https://doi.org/10.3389/fmars.2019.00448
Meyssignac, B., et al. (2019): Measuring global ocean heat content to estimate the Earth energy imbalance. Front. Mar. Sci., 6, 432, Oceanobs19: An Ocean of Opportunity. https://doi.org/10.3389/fmars.2019.00432
Roemmich, D., et al. (2019): On the future of Argo: A global, full-depth, multi-disciplinary array. Front. Mar. Sci., 6, 439, Oceanobs19: An Ocean of Opportunity. https://doi.org/10.3389/fmars.2019.00439
Sloyan, B., et al. (2019): The Global Ocean Ship-Base Hydrographic Investigations Program (GO-SHIP): A platform for integrated multidisciplinary ocean science. Front. Mar. Sci., 6, 445, Oceanobs19: An Ocean of Opportunity. https://doi.org/10.3389/fmars.2019.00445
OceanObs’19 was held in Honolulu, Hawaii, in September 2019. The conference presented a unique forum to share new ideas and concepts in marine data management and to emphasize the opportunities presented by a rapidly changing technology landscape. The OceanObs’19 conference was designed to bring: “… people from all over the planet together to communicate the decadal progress of ocean observing networks and to chart innovative solutions to society’s growing needs for ocean information in the coming decade.”
OceanObs’19 community white papers (CWPs) included the input of nearly 2,500... more »