Search Results - "Johnsen, S. J."

Holocene thinning of the Greenland ice sheet by Dahl-Jensen, D, Rasmussen, S. O, Buchardt, S. L, Johnsen, S. J, Koerner, R. M, Andersen, K. K, Raynaud, D, Blunier, T, Vinther, B. M, Steffensen, J. P, Lipenkov, V, Clausen, H. B, Fisher, D. A, Svensson, A. M

“…On entering an era of global warming, the stability of the Greenland ice sheet (GIS) is an important concern, especially in the light of new evidence of…”
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A synchronized dating of three Greenland ice cores throughout the Holocene by Vinther, B. M., Clausen, H. B., Johnsen, S. J., Rasmussen, S. O., Andersen, K. K., Buchardt, S. L., Dahl-Jensen, D., Seierstad, I. K., Siggaard-Andersen, M.-L., Steffensen, J. P., Svensson, A., Olsen, J., Heinemeier, J.

“…As part of the effort to create the new Greenland Ice Core Chronology 2005 (GICC05) a synchronized stratigraphical timescale for the Holocene parts of the…”
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A 600-year annual 10Be record from the NGRIP ice core, Greenland by Berggren, A.-M., Beer, J., Possnert, G., Aldahan, A., Kubik, P., Christl, M., Johnsen, S. J., Abreu, J., Vinther, B. M.

“…Despite the extensive use of 10Be as the most significant information source on past solar activity, there has been only one record (Dye‐3, Greenland)…”
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Ice-vapor equilibrium fractionation factor of hydrogen and oxygen isotopes: Experimental investigations and implications for stable water isotope studies by Ellehoj, M. D., Steen-Larsen, H. C., Johnsen, S. J., Madsen, M. B.

“…RATIONALE The equilibrium fractionation factors govern the relative change in the isotopic composition during phase transitions of water. The commonly used…”
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GRIP Deuterium Excess Reveals Rapid and Orbital-Scale Changes in Greenland Moisture Origin by Masson-Delmotte, V., Jouzel, J., Landais, A., Stievenard, M., Johnsen, S. J., White, J. W. C., Werner, M., Sveinbjornsdottir, A., Fuhrer, K.

“…The Northern Hemisphere hydrological cycle is a key factor coupling ice sheets, ocean circulation, and polar amplification of climate change. Here we present a…”
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A new Greenland ice core chronology for the last glacial termination by Rasmussen, S. O., Andersen, K. K., Svensson, A. M., Steffensen, J. P., Vinther, B. M., Clausen, H. B., Siggaard-Andersen, M.-L., Johnsen, S. J., Larsen, L. B., Dahl-Jensen, D., Bigler, M., Röthlisberger, R., Fischer, H., Goto-Azuma, K., Hansson, M. E., Ruth, U.

“…We present a new common stratigraphic timescale for the North Greenland Ice Core Project (NGRIP) and GRIP ice cores. The timescale covers the period 7.9–14.8…”
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A 60 000 year Greenland stratigraphic ice core chronology by Svensson, A., Andersen, K. K., Bigler, M., Clausen, H. B., Dahl-Jensen, D., Davies, S. M., Johnsen, S. J., Muscheler, R., Parrenin, F., Rasmussen, S. O., Röthlisberger, R., Seierstad, I., Steffensen, J. P., Vinther, B. M.

“…The Greenland Ice Core Chronology 2005 (GICC05) is a time scale based on annual layer counting of high-resolution records from Greenland ice cores. Whereas the…”
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Past Temperatures Directly from the Greenland Ice Sheet by Dahl-Jensen, D., Mosegaard, K., Gundestrup, N., Clow, G. D., Johnsen, S. J., Hansen, A. W., Balling, N.

“…A Monte Carlo inverse method has been used on the temperature profiles measured down through the Greenland Ice Core Project (GRIP) borehole, at the summit of…”
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A global picture of the first abrupt climatic event occurring during the last glacial inception by Capron, E., Landais, A., Chappellaz, J., Buiron, D., Fischer, H., Johnsen, S. J., Jouzel, J., Leuenberger, M., Masson-Delmotte, V., Stocker, T. F.

“…The orbital‐scale transition from the last interglacial to glacial climate corresponds to the progressive organization of global millennial‐scale climate…”
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Little Ice Age climate and oceanic conditions of the Ross Sea, Antarctica from a coastal ice core record by Rhodes, R. H, Bertler, N. A. N, Baker, J. A, Steen-Larsen, H. C, Sneed, S. B, Morgenstern, U, Johnsen, S. J

“…Increasing paleoclimatic evidence suggests that the Little Ice Age (LIA) was a global climate change event. Understanding the forcings and associated climate…”
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Asynchrony of Antarctic and Greenland climate change during the last glacial period by Blunier, T, Chappellaz, J, Schwander, J, Dällenbach, A, Stauffer, B, Stocker, T. F, Raynaud, D, Jouzel, J, Clausen, H. B, Hammer, C. U, Johnsen, S. J

“…A central issue in climate dynamics is to understand how the Northern and Southern hemispheres are coupled during climate events. The strongest of the fast…”
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Synchronizing ice cores from the Renland and Agassiz ice caps to the Greenland Ice Core Chronology by Vinther, B. M., Clausen, H. B., Fisher, D. A., Koerner, R. M., Johnsen, S. J., Andersen, K. K., Dahl-Jensen, D., Rasmussen, S. O., Steffensen, J. P., Svensson, A. M.

“…Four ice cores from the Agassiz ice cap in the Canadian high arctic and one ice core from the Renland ice cap in eastern Greenland have been synchronized to…”
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Direct linking of Greenland and Antarctic ice cores at the Toba eruption (74 ka BP) by Svensson, A, Bigler, M, Blunier, T, Clausen, H. B, Dahl-Jensen, D, Fischer, H, Fujita, S, Goto-Azuma, K, Johnsen, S. J, Kawamura, K, Kipfstuhl, S, Kohno, M, Parrenin, F, Popp, T, Rasmussen, S. O, Schwander, J, Seierstad, I, Severi, M, Steffensen, J. P, Udisti, R, Uemura, R, Vallelonga, P, Vinther, B. M, Wegner, A, Wilhelms, F, Winstrup, M

“…The Toba eruption that occurred some 74 ka ago in Sumatra, Indonesia, is among the largest volcanic events on Earth over the last 2 million years. Tephra from…”
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Millennial and sub-millennial scale climatic variations recorded in polar ice cores over the last glacial period by Capron, E., Landais, A., Chappellaz, J., Schilt, A., Buiron, D., Dahl-Jensen, D., Johnsen, S. J., Jouzel, J., Lemieux-Dudon, B., Loulergue, L., Leuenberger, M., Masson-Delmotte, V., Meyer, H., Oerter, H., Stenni, B.

“…Since its discovery in Greenland ice cores, the millennial scale climatic variability of the last glacial period has been increasingly documented at all…”
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Retrieving a common accumulation record from Greenland ice cores for the past 1800 years by Andersen, K. K., Ditlevsen, P. D., Rasmussen, S. O., Clausen, H. B., Vinther, B. M., Johnsen, S. J., Steffensen, J. P.

“…In the accumulation zone of the Greenland ice sheet the annual accumulation rate may be determined through identification of the annual cycle in the isotopic…”
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Validity of the temperature reconstruction from water isotopes in ice cores by Jouzel, J., Alley, R. B., Cuffey, K. M., Dansgaard, W., Grootes, P., Hoffmann, G., Johnsen, S. J., Koster, R. D., Peel, D., Shuman, C. A., Stievenard, M., Stuiver, M., White, J.

“…Well‐documented present‐day distributions of stable water isotopes (HDO and H218O) show the existence, in middle and high latitudes, of a linear relationship…”
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A continuous record of temperature evolution over a sequence of Dansgaard-Oeschger events during Marine Isotopic Stage 4 (76 to 62 kyr BP) by Landais, A., Barnola, J. M., Masson-Delmotte, V., Jouzel, J., Chappellaz, J., Caillon, N., Huber, C., Leuenberger, M., Johnsen, S. J.

“…Our knowledge of the temperature evolution over Greenland during Dansgaard‐Oeschger events (DO) is currently qualitatively described through the water isotopic…”
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Holocene climatic changes in Greenland: Different deuterium excess signals at Greenland Ice Core Project (GRIP) and NorthGRIP by Masson-Delmotte, V., Landais, A., Stievenard, M., Cattani, O., Falourd, S., Jouzel, J., Johnsen, S. J., Dahl-Jensen, D., Sveinsbjornsdottir, A., White, J. W. C., Popp, T., Fischer, H.

“…Water stable isotope measurements (δD and δ18O) have been conducted on the Holocene part of two deep Greenland ice cores (Greenland Ice Core Project (GRIP) and…”
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Evidence for general instability of past climate from a 250-kyr ice-core record by Dansgaard, W, Johnsen, S. J, Clausen, H. B, Dahl-Jensen, D, Gundestrup, N. S, Hammer, C. U, Hvidberg, C. S, Steffensen, J. P, Sveinbjörnsdottir, A. E, Jouzel, J, Bond, G

“…A detailed stable-isotope record of the Greenland Ice-core Project (GRIP) ice core is presented. Climate instability appears to have been marked in the last…”
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A Mid-European Decadal Isotope-Climate Record from 15,500 to 5000 Years B.P by von Grafenstein, Ulrich, Erlenkeuser, Helmut, Brauer, Achim, Jouzel, Jean, Johnsen, Sigfus J.

“…Oxygen-isotope ratios of precipitation ($\delta^{18}$O$_p$) inferred from deep-lake ostracods from the Ammersee (southern Germany) provide a climate record…”
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