Search Results - "Simmons, Adrian"

ERA-20C: An Atmospheric Reanalysis of the Twentieth Century by Poli, Paul, Hersbach, Hans, Dee, Dick P., Berrisford, Paul, Simmons, Adrian J., Vitart, Frédéric, Laloyaux, Patrick, Tan, David G. H., Peubey, Carole, Thépaut, Jean-Noël, Trémolet, Yannick, Hólm, Elías V., Bonavita, Massimo, Isaksen, Lars, Fisher, Michael

“…The ECMWF twentieth century reanalysis (ERA-20C; 1900–2010) assimilates surface pressure and marine wind observations. The reanalysis is single-member, and the…”
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Arctic warming in ERA‐Interim and other analyses by Simmons, Adrian J., Poli, Paul

“…Near‐surface and lower‐tropospheric warming of the Arctic over the past 35 years is examined for several datasets. The new estimate for the near surface…”
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ERA‐20CM: a twentieth‐century atmospheric model ensemble by Hersbach, Hans, Peubey, Carole, Simmons, Adrian, Berrisford, Paul, Poli, Paul, Dee, Dick

“…This article describes an ensemble of ten atmospheric model integrations for the years 1899–2010, performed at the European Centre for Medium‐Range Weather…”
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THE CONCEPT OF ESSENTIAL CLIMATE VARIABLES IN SUPPORT OF CLIMATE RESEARCH, APPLICATIONS, AND POLICY by Bojinski, Stephan, Verstraete, Michel, Peterson, Thomas C., Richter, Carolin, Simmons, Adrian, Zemp, Michael

“…Climate research, monitoring, prediction, and related services rely on accurate observations of the atmosphere, land, and ocean, adequately sampled globally…”
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The COSMIC/FORMOSAT-3 Radio Occultation Mission after 12 Years: Accomplishments, Remaining Challenges, and Potential Impacts of COSMIC-2 by Ho, Shu-peng, Anthes, Richard A., Ao, Chi O., Healy, Sean, Horanyi, Andras, Hunt, Douglas, Mannucci, Anthony J., Pedatella, Nicholas, Randel, William J., Simmons, Adrian, Steiner, Andrea, Xie, Feiqin, Yue, Xinan, Zeng, Zhen

“…Launched in 2006, the Formosa Satellite Mission 3–Constellation Observing System for Meteorology, Ionosphere and Climate (FORMOSAT-3/COSMIC) was the first…”
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An improved estimate of daily precipitation from the ERA5 reanalysis by Lavers, David A., Hersbach, Hans, Rodwell, Mark J., Simmons, Adrian

“…Precipitation is an essential climate variable and a fundamental part of the global water cycle. Given its importance to society, precipitation is often…”
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Excess mortality in Europe following a future Laki-style Icelandic eruption by Schmidt, Anja, Ostro, Bart, Carslaw, Kenneth S, Wilson, Marjorie, Thordarson, Thorvaldur, Mann, Graham W, Simmons, Adrian J

“…Historical records show that the A.D. 1783–1784 Laki eruption in Iceland caused severe environmental stress and posed a health hazard far beyond the borders of…”
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The potential value of early (1939–1967) upper‐air data in atmospheric climate reanalysis by Hersbach, Hans, Brönnimann, Stefan, Haimberger, Leopold, Mayer, Michael, Villiger, Leonie, Comeaux, Joey, Simmons, Adrian, Dee, Dick, Jourdain, Sylvie, Peubey, Carole, Poli, Paul, Rayner, Nick, Sterin, Alexander M., Stickler, Alexander, Valente, Maria A., Worley, Steven J.

“…In recent years a number of reanalysis datasets have been published that cover the past century or more, including the ‘Twentieth Century Reanalysis’ 20CRv2…”
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Observation and integrated Earth-system science: A roadmap for 2016–2025 by Simmons, Adrian, Fellous, Jean-Louis, Ramaswamy, Venkatachalam, Trenberth, Kevin, Asrar, Ghassem, Balmaseda, Magdalena, Burrows, John P., Ciais, Philippe, Drinkwater, Mark, Friedlingstein, Pierre, Gobron, Nadine, Guilyardi, Eric, Halpern, David, Heimann, Martin, Johannessen, Johnny, Levelt, Pieternel F., Lopez-Baeza, Ernesto, Penner, Joyce, Scholes, Robert, Shepherd, Ted

“…This report is the response to a request by the Committee on Space Research of the International Council for Science to prepare a roadmap on observation and…”
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The SPARC Intercomparison of Middle-Atmosphere Climatologies by Randel, William, Udelhofen, Petra, Fleming, Eric, Geller, Marvin, Gelman, Mel, Hamilton, Kevin, Karoly, David, Ortland, Dave, Pawson, Steve, Swinbank, Richard, Wu, Fei, Baldwin, Mark, Chanin, Marie-Lise, Keckhut, Philippe, Labitzke, Karin, Remsberg, Ellis, Simmons, Adrian, Wu, Dong

“…An updated assessment of uncertainties in “observed” climatological winds and temperatures in the middle atmosphere (over altitudes ∼10–80 km) is provided by…”
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Identification of anthropogenic climate change using a second-generation reanalysis by Santer, Benjamin D., Wigley, Tom M. L., Simmons, Adrian J., Kållberg, Per W., Kelly, Graeme A., Uppala, Sakari M., Ammann, Caspar, Boyle, James S., Brüggemann, Wolfgang, Doutriaux, Charles, Fiorino, Mike, Mears, Carl, Meehl, Gerald A., Sausen, Robert, Taylor, Karl E., Washington, Warren M., Wehner, Michael F., Wentz, Frank J.

“…Changes in the height of the tropopause provide a sensitive indicator of human effects on climate. A previous attempt to identify human effects on tropopause…”
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ASSIMILATION AND MODELING OF THE ATMOSPHERIC HYDROLOGICAL CYCLE IN THE ECMWF FORECASTING SYSTEM by Andersson, Erik, Bauer, Peter, Beljaars, Anton, Chevallier, Frederic, Hólm, Elías, Janisková, Marta, Kållberg, Per, Kelly, Graeme, Lopez, Philippe, McNally, Anthony, Moreau, Emmanuel, Simmons, Adrian J., Thépaut, Jean-Noël, Tompkins, Adrian M.

“…Several new types of satellite instrument will provide improved measurements of Earth's hydrological cycle and the humidity of the atmosphere. In an effort to…”
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An evaluation of ERA5 precipitation for climate monitoring by Lavers, David A., Simmons, Adrian, Vamborg, Freja, Rodwell, Mark J.

“…A key aim of climate monitoring is to place the current conditions of climate variables, such as surface air temperature and precipitation, in their historical…”
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High Clouds over Oceans in the ECMWF 15- and 45-Yr Reanalyses by Chevallier, Frédéric, Kelly, Graeme, Simmons, Adrian J., Uppala, Sakari, Hernandez, Angeles

“…The reanalysis programs of numerical weather prediction (NWP) centers provide global, comprehensive descriptions of the atmosphere and of the earth’s surface…”
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Trends in the tropospheric general circulation from 1979 to 2022 by Simmons, Adrian J.

“…Atmospheric general circulation changes from March 1979 to February 2022 are examined using the ERA5 reanalysis. Maps of linear trends and time series for…”
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The ERA5 global reanalysis: Preliminary extension to 1950 by Bell, Bill, Hersbach, Hans, Simmons, Adrian, Berrisford, Paul, Dahlgren, Per, Horányi, András, Muñoz‐Sabater, Joaquín, Nicolas, Julien, Radu, Raluca, Schepers, Dinand, Soci, Cornel, Villaume, Sebastien, Bidlot, Jean‐Raymond, Haimberger, Leo, Woollen, Jack, Buontempo, Carlo, Thépaut, Jean‐Noël

“…The extension of the ERA5 reanalysis back to 1950 supplements the previously published segment covering 1979 to the present. It features the assimilation of…”
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Multiple Chromosomes in Bacteria: The Yin and Yang of trp Gene Localization in Rhodobacter sphaeroides 2.4.1 by Mackenzie, Chris, Simmons, Adrian E, Kaplan, Samuel

“…The existence of multiple chromosomes in bacteria has been known for some time. Yet the extent of functional solidarity between different chromosomes remains…”
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The ERA5 global reanalysis from 1940 to 2022 by Soci, Cornel, Hersbach, Hans, Simmons, Adrian, Poli, Paul, Bell, Bill, Berrisford, Paul, Horányi, András, Muñoz‐Sabater, Joaquín, Nicolas, Julien, Radu, Raluca, Schepers, Dinand, Villaume, Sebastien, Haimberger, Leopold, Woollen, Jack, Buontempo, Carlo, Thépaut, Jean‐Noël

“…We provide a description and concise evaluation of the European Centre of Medium‐range Weather Forecasts Reanalysis v.5 (ERA5) global reanalysis from an…”
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Benchmarking Northern Hemisphere midlatitude atmospheric synoptic variability in centennial reanalysis and numerical simulations by Dell'Aquila, Alessandro, Corti, Susanna, Weisheimer, Antje, Hersbach, Hans, Peubey, Carol, Poli, Paul, Berrisford, Paul, Dee, Dick, Simmons, Adrian

“…The representation of midlatitude winter atmospheric synoptic variability in centennial reanalysis products, which assimilate surface observations only, and…”
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State of the Climate in 2020 by Blunden, J., Boyer, T.

“…Abstract Editors note: For easy download the posted pdf of the State of the Climate in 2020 is a very low-resolution file. A high-resolution copy of the report…”
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