Posts Tagged «Ignatius Rigor»

April 1, 2019 – TODAY Show host, Al Roker, traveled to Utqiagvik, Alaska to report on climate change. Al talks with PSC’s Ignatius Rigor about his research and the technology being used to gather data.

Alkire, M.B., K.K. Falkner, I. Rigor, M. Steele, J. Morison (2007). The return of Pacific waters to the upper layers of the central Arctic Ocean, Deep-Sea Research I 54: 1509-1529.

Alkire, M.B., K.K. Falkner, J. Morison, R.W. Collier, C.K.Guay, R.A. Desiderio, I.G. Rigor, M. McPhee (2010). Sensor-based profiles of the NO parameter in the central Arctic and southern Canada Basin: new insights regarding the cold halocline, Deep-Sea Research I 57: 1432-1443, 2010.

Ignatius Rigor and Roger Anderson deployed meteorological buoys and AXCTD probes for the International Arctic Buoy Program, August 2011.

This project will produce authoritative SAT data sets covering the Arctic Ocean from 1901 to present, which will be used to better understand Arctic climate change.

Bacon, S., G. Reverdin, I.G. Rigor, and H.M. Snaith, “A freshwater jet on the east Greenland shelf“, J. Geophys. Res., 107, 10.1029/2001JC000935, 2002.

Darby, D.A., W.B. Myers, M. Jakobsson, and I. Rigor, Modern dirty sea ice characteristics and sources: The role of anchor ice, J. Geophys. Res., 116, C09008, doi: 10.1029/2010JC006675, 2011

deSteur, L., M. Steele, J. Morison, I. G. Rigor, C. M. Lee, and E. Hansen, Recent changes in Arctic Ocean freshwater distribution, J. Climate, in review, 2010.

Doherty, S., M. Steele, I. Rigor, and S. G. Warren, Interannual variations of light-absorbing particles in snow on Arctic sea ice, J. Geophys. Res., 120, doi:10.1002/2015JD024018, 2015

Eicken, H., R. Gradinger, A. Graves, A. Mahoney, I. Rigor, and H. Melling,’ Sediment transport by sea ice in the Chukchi and Beaufort Seas: Increasing importance due to changing ice conditions?’, Deep Sea Research, 2005.

In July 2023, the Office of Naval Research (ONR) partnered with the 144th Airlift Squadron of the Alaska Air National Guard to deploy five different types of weather buoys across more than 1,000 nautical miles of the Arctic Ocean. Such deployments are critical for maintaining the Arctic Observing Network (AON), which provides observations for weather and ice forecasting and related research.

The 144th Airlift Squadron (the “Arctic Wolves”) and part of the 176th Wing (the “Arctic Guardians”) conducted the flights on a C-17 Globemaster III aircraft. In addition to personnel from the 176th Wing, participants included PSC’s Ignatius Rigor along with professors and scientists from the University of Maryland as well as ONR reservists. 

The extent of arctic sea ice during the summer has declined to near-record minima during the last several summers. Can we predict future minima? Our weekly to seasonal forecasts provided by the National/Naval Ice Center help residents and navigators in the Arctic make better decisions regarding sea ice.

Ignatius Rigor collaborated on a study of Antarctic sea ice change using satellite observations. Read the paper presenting the findings in the journal Remote Sensing of Environment.

Haas, C., A. Pfaffling, S. Hendriks, L. Rabenstein, J.-L. Etienne, and I. Rigor, Reduced ice thickness in Arctic Transpolar Drift favors rapid ice retreat, Geophys. Res. Lett., 35, L17501, doi:10.1029/2008GL034457, 2008.

The Verge, a news website for the mainstream, interviewed PSC’s Ignatius Rigor and other researchers to find out how vanishing sea ice in the Arctic impacts the general public.

Hutchings, J., and I. Rigor, Role of ice dynamics in anomalous ice conditions in the Beaufort Sea during 2006 and 2007, J. Geophys. Res, v. 117, C00E04, 14, doi:10.1029/2011JC007182, 2012.

The objective of this project is to investigate impacts of Arctic sea ice reduction on bromine, ozone, and mercury chemical processes, transport, and distribution from sea ice surfaces on the Arctic Ocean, and atmospheric transport of these chemicals to high mountains on land.

Observations of surface air pressure (SAP) and surface air temperature (SAT) provide the foundation of our ability to forecast weather and ice conditions, and our ability to understand the earth’s climate and climate change. These basic variables are monitored through out the globe by weather stations on land, moored buoys along the coast, and drifting buoys in most of the world’s oceans. However, the Southern Ocean and sea ice around Antarctica continue to be one of the least sampled areas of the planet. This lack of observations around Antarctica hinders our ability to accurately predict weather (Bromwich and Cassano, 2001),…

The participants of the IABP work together to maintain a network of drifting buoys in the Arctic Ocean to provide meteorological and oceanographic data for real-time operational requirements and research purposes including support to the World Climate Research Programme and the World Weather Watch Programme.

Intergovernmental Panel on Climate Change (IPCC) Working Group I, Contribution to the Fourth Assessment Report of the IPCC – Climate Change 2007: The Physical Science Basis. (Rigor, I.G. is a Contributing Author).

Jones, P.D., M. New, D.E. Parker, S. Martin, and I.G. Rigor , Surface air temperature and its changes over the past 150 years, Rev. Geophys. Vol. 37 , No. 2 , p. 173 – 200, 1999.

Kwok, R., G.F. Cunningham, M. Wensnahan, I. Rigor, H.J. Zwally, and D. Yi,’ Thinning and volume loss of the Arctic Ocean sea ice cover: 2003-2008′, J. Geophys. Res., 114, doi:10.1029/2009JC005312, 2009.

Landa, E., E. Reimnitz, D. Beals, J. Pochkowski, and I.G. Rigor, Transport of 137Cs and 239,240Pu by Ice Rafted Debris in the Arctic Ocean, Arctic, v. 51, no. 1, pp. 27-39, 1998.

Morison, J., R. Kwok, C. Peralta-Ferriz, M. Alkire, I. Rigor, R. Andersen, and M. Steele, Changing Arctic Ocean Freshwater Pathways Measured With ICESat and GRACE, Nature, 481, 66-70, DOI: 10.1038/nature10705, 2012

PSC’s Ignatius Rigor took part in buoy deployments near the North Pole, in early September, as part of the International Arctic Buoy Program (IABP) – a partnership of global participants maintaining a network of drifting buoys in the Arctic Ocean. Read the Navy News Service post to learn more about IABP and the joint mission…

Nghiem, S. V., I.G. Rigor, A. Richter, J.P. Burrows , P.B. Shepson, J. Bottenheim, D.G. Barber, A. Steffen, J. Latonas, F. Wang, G. Stern, P. Clemente-Colón S. Martin, D.K. Hall, P. Tackett, G. Neumann, and M.G. Asplin, Arctic Sea Ice Reduction and Tropospheric Chemical Anomalies, J. Geophys. Res., in press, 2012.

Nghiem, S.V., I.G.Rigor, D.K. Perovich, P. Clemente-Colón, J. Richter-Menge, J. W. Weatherly, and G. Neumann, Rapid reduction of Arctic perennial sea ice, Geophys. Res. Lett., iv. 24, L19504, doi:10.1029/2007GL031128, 2007.

Nghiem, S.V., I.G. Rigor, P. Clemente-Colón, D. K. Perovich, and G. Neumann, New record reduction of Arctic perennial sea ice in winter 2008, Jet Propul. Lab. Doc. D-44233, Pasadena, Calif., 2008.

Nghiem, S.V., I.G. Rigor, A. Richter, J.P. Burrows, P.B Shepson, J. Bottenheim, D.G. Barber, A. Steffen, J. Latonas, F. Wang, G. Stern, P. Clemente-Colon S. Martin, D.K. Hall, P. Tackett, G. Neumann, and M.G. Asplin, Arctic Sea Ice Reduction and Tropospheric Chemical Anomalies, J. Geophys. Res., in press, 2012

Nghiem, S.V., P. Clemente-Colón, I.G. Rigor, D.K. Hall, G. Neumann, Seafloor control on sea ice. Deep- Sea Res. II (2012), j.dsr2.2012.04.004, in press, 2012.

Nghiem, S. V., I.G. Rigor, A. Richter, J.P. Burrows , P.B. Shepson, J. Bottenheim, D.G. Barber, A. Steffen, J. Latonas, F. Wang, G. Stern, P. Clemente-Colón S. Martin, D.K. Hall, P. Tackett, G. Neumann, and M.G. Asplin, Field and satellite observations of the formation and distribution of Arctic atmospheric bromine above a rejuvenated sea ice cover, J. Geophys. Res., 117, D00S05, doi:10.1029/2011JD016268, 2012.

Nghiem, S.V., I.G. Rigor, Pl Clemente-Colón, G. Newmann, and P.P. Li, Geophysical constraints on the Antarctic sea ice cover, Remote Sens. Environ., 181, 281-292,, 2016.

Ogi, M; Rigor, IG; McPhee, MG; Wallace, JM, “Summer retreat of Arctic sea ice: Role of summer winds”, Geophys. Res. Lett., vol. 35, 10.1029/2008GL03567, 2008.

Peterson, P.K., Hartwig, M., May, N.W., Schwartz, E., Rigor, I., Ermold, W., Steele, M., Morison, J.H., Nghiem, S.V. and Pratt, K.A., 2019. Snowpack measurements suggest role for multi-year sea ice regions in Arctic atmospheric bromine and chlorine chemistry. Elem Sci Anth, 7(1), p.14. DOI:

Pfirman, S., W.F. Haxby, R. Colony, and I. Rigor,’ Variability in Arctic Sea Ice Drift’, Geophys. Res. Lett., v. 31, doi :10.1029 /2004GL020063, 2004.

Pfirman, S.L, J.W. K_geler, and I.G. Rigor, Potential Shortcuts for Transport of Contaminants from the Kara Sea, Sci.Total Environ., vol. 202, pp. 111-122, 1997.

Pfirman, S.L., R. Colony, D. Nurnberg, H. Eicken, and I.G. Rigor, Reconstructing the Origin and Trajectory of Drifting Arctic Sea Ice, J. Geophys. Res., vol. 102 no.6 pp. 12575-12586, 1997.

PSC’s Ignatius Rigor brings his sea ice expertise to the podcast series Science Vs as they investigate the idea of the polar bear moving toward extinction. 

Richter-Menge, J.A., D.K. Perovich, B.C. Elder, K. Claffey, I.Rigor, M. Ortmeyer, “Ice Mass Balance Buoys: A tool for measuring and attributing changes in the thickness of Arctic sea ice cover“, Annals of Glaciology, V.44, 2006.

Richter-Menge, J., J. Overland, A. Proshutinsky, V. Romanovsky, L. Bengtsson, L. Brigham, M. Dyurgerov, J.C. Gascard, S. Gerland, R. Graversen, C. Haas, M. Karcher, P. Kuhry, J. Maslanik, H. Melling, W. Maslowski, J. Morison, D. Perovich, R. Przybylak, V. Rachold, I.G. Rigor, A. Shiklomanov, J. Stroeve, D. Walker, and J. Walsh,’ State of the Arctic‘, NOAA OAR Special Report, NOAA/OAR/PMEL, Seattle, WA, 36 pp, 2006.

Richter-Menge, J.A., and many other including I.G. Rigor, State of the Arctic. FY 2005 NOAA Annual Report: The State of the Ocean and the Ocean Observing System For Climate, ed. Diane M. Stanitski, NOAA Office of Climate Observation, Silver Spring, MD, 20910. USA, 2006.

Rigor, I.G.,’ Arctic meteorological stations’, Encyclopedia of the Arctic, Routledge, New York, 2004.

Rigor, I.G., and Jackie Richter-Menge,’ Sea Ice Extent and Thickness. FY 2004 NOAA Annual Report: The State of the Ocean and the Ocean Observing System For Climate’, ed. Diane M. Stanitski, NOAA Office of Climate Observation, Silver Spring, MD, 20910. USA, pp. 67-74, 2005.

Rigor, I.G.,’ Laptev Sea’, Encyclopedia of the Arctic, Routledge, New York, 2004.

Rigor, I.G.,’ Sea ice’, Encyclopedia of the Arctic, Routledge, New York, 2004.

Rigor, I.G., and R. Colony, Sea Ice Production in the Laptev Sea, Sci. Total Environ., vol. 202, pp. 89- 110, 1997.

Rigor, I.G., R.L. Colony, and S. Martin, Variations in Surface Air Temperature in the Arctic from 1979- 1997, J. Climate, v. 13, no. 5, pp. 896 – 914, 2000.

Rigor, I.G., J.M. Wallace, and R.L. Colony, Response of Sea Ice to the Arctic Oscillation, J. Climate, v. 15, no. 18, pp. 2648 – 2668, 2002.

Rigor, I.G., and J.M. Wallace,’ Variations in the age of Arctic sea-ice and summer sea-ice extent’, Geophys. Res. Lett., 31, L09401, 10.1029/2004GL019492, 2004.

Rigor, I.G. and J.M. Wallace, Variations in the Age of Sea Ice and Summer Sea Ice Extent, Geophys. Res. Lett., v. 31, doi:10.1029/2004GL019492, 2004.