# LOSCAR Model Paleocene-Eocene Thermal Maximum pCO2 Output #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # Template Version 4.0 # Encoding: UTF-8 # NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), # and date accessed when using these downloaded data. If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # NOAA_Landing_Page: https://www.ncdc.noaa.gov/paleo/study/13136 # Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata. # # Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-forcing-13136.json # Study_Level_JSON_Description: JSON metadata of this file's parent study, which includes all study metadata. # # Data_Type: Climate Forcing # # Dataset_DOI: # # Science_Keywords: carbon cycle #------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/climate_forcing/trace_gases/loscar-petm-co2-noaa.txt # Data_Download_Description: NOAA Template File; LOSCAR pCO2 Data # # Original_Source_URL: # Original_Source_Description: # #------------------- # Contribution_Date # Date: 2012-07-11 #------------------- # File_Last_Modified_Date # Date: 2021-09-13 #------------------- # Title # Study_Name: LOSCAR Model Paleocene-Eocene Thermal Maximum pCO2 Output #------------------- # Investigators # Investigators: Zeebe, R.E. (https://orcid.org/0000-0003-0806-8387) #------------------- # Description_Notes_and_Keywords # Description: pCO2 output for the Palaeocene-Eocene Thermal Maximum from LOSCAR model (Long-term Ocean-atmosphere-Sediment CArbon cycle Reservoir Model) Model run is for 200,000 y after Paleocene-Eocene boundary (~56 Ma) #------------------- # Publication # Authors: Zeebe, R.E. # Journal_Name: Geoscientific Model Development # Published_Title: LOSCAR: Long-term Ocean-atmosphere-Sediment CArbon cycle Reservoir Model v2.0.4 # Published_Date_or_Year: 2012 # Volume: 5 # Pages: 149-166 # Issue: # Report_Number: # DOI: 10.5194/gmd-5-149-2012 # Full_Citation: Zeebe, R.E. 2012. LOSCAR: Long-term Ocean-atmosphere-Sediment CArbon cycle Reservoir Model v2.0.4. Geosci. Model Dev., 5, 149-166 www.geosci-model-dev.net/5/149/2012/doi:10.5194/gmd-5-149-2012 # Abstract: The LOSCAR model is designed to efficiently compute the partitioning of carbon between ocean, atmosphere, and sediments on time scales ranging from centuries to millions of years. While a variety of computationally inexpensive carbon cycle models are already available, many are missing a critical sediment component, which is indispensable for long-term integrations. One of LOSCAR's strengths is the coupling of ocean-atmosphere routines to a computationally efficient sediment module. This allows, for instance, adequate computation of CaCO3 dissolution, calcite compensation, and long-term carbon cycle fluxes, including weathering of carbonate and silicate rocks. The ocean component includes various biogeochemical tracers such as total carbon, alkalinity, phosphate, oxygen, and stable carbon isotopes. LOSCAR's configuration of ocean geometry is flexible and allows for easy switching between modern and paleo-versions. We have previously published applications of the model tackling future projections of ocean chemistry and weathering, pCO2 sensitivity to carbon cycle perturbations throughout the Cenozoic, and carbon/calcium cycling during the Paleocene-Eocene Thermal Maximum. The focus of the present contribution is the detailed description of the model including numerical architecture, processes and parameterizations, tuning, and examples of input and output. Typical CPU integration times of LOSCAR are of order seconds for several thousand model years on current standard desktop machines. The LOSCAR source code in C can be obtained from the author by sending a request to loscar.model@gmail.com. #------------------- # Funding_Agency # Funding_Agency_Name: # Grant_Number: #------------------- # Site_Information # Site_Name: Global # Location: Geographic Region>Global # Northernmost_Latitude: 90 # Southernmost_Latitude: -90 # Easternmost_Longitude: 180 # Westernmost_Longitude: -180 # Elevation_m: #------------------- # Data_Collection # Collection_Name: LOSCAR2012 # First_Year: 56000000 # Last_Year: 55800000 # Time_Unit: cal yr BP # Core_Length_m: # Parameter_Keywords: carbon dioxide # Notes: #------------------- # Chronology_Information # Chronology: #------------------- # Variables # # PaST_Thesaurus_Download_Resource: https://www.ncdc.noaa.gov/paleo/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format. # # variables format: shortname what,material,error,units,seasonality,data_type,detail,method, C(har) or N(umeric) data,additional information # ## Time age,,,calendar year,,climate forcing;paleoclimatic modeling,,,N,years from start of model simulation ## AtmoCO2 carbon dioxide,bulk atmosphere,,parts per million,,climate forcing;paleoclimatic modeling,,,N, #------------------------------- # DATA: # Missing_Values: NA Time AtmoCO2 0.00 1000.00 4.46 1000.60 8.91 1001.19 13.37 1001.78 32.11 1004.24 50.84 1006.69 69.58 1009.14 108.92 1014.32 148.25 1019.55 187.59 1024.86 226.93 1030.26 293.20 1039.50 359.48 1048.91 425.75 1058.41 492.02 1067.97 558.29 1077.53 649.00 1090.60 739.70 1103.61 830.41 1116.51 921.11 1129.29 1011.82 1141.95 1162.58 1162.72 1313.35 1183.18 1464.11 1203.37 1614.88 1223.32 1765.65 1243.08 1901.65 1260.79 2037.66 1278.45 2173.67 1296.11 2309.68 1313.80 2445.68 1331.48 2637.94 1356.39 2830.20 1381.15 2967.31 1398.73 3104.43 1416.11 3241.54 1433.42 3378.66 1450.83 3515.78 1468.34 3571.25 1475.46 3626.73 1482.57 3682.21 1489.69 3737.69 1496.80 3793.17 1503.91 3872.12 1514.01 3951.07 1524.11 4030.01 1534.20 4108.96 1544.29 4187.90 1554.36 4430.03 1585.18 4502.66 1594.40 4575.30 1603.61 4647.93 1612.80 4720.57 1621.98 4793.21 1631.15 4915.30 1646.55 5037.40 1661.96 5159.50 1677.40 5281.59 1692.88 5403.69 1708.40 5586.62 1731.70 5769.56 1755.02 5952.49 1778.29 6007.37 1781.56 6062.25 1781.80 6117.13 1780.97 6172.01 1780.07 6226.90 1779.21 6340.13 1776.91 6453.37 1774.04 6566.60 1770.77 6679.84 1767.23 6866.99 1761.17 7054.15 1755.04 7241.31 1749.05 7428.47 1743.30 7718.78 1734.95 7935.05 1729.18 8151.32 1723.79 8300.87 1720.27 8417.50 1717.63 8534.12 1715.07 8650.75 1712.60 8767.37 1710.19 8963.16 1706.31 9158.95 1702.58 9354.73 1699.01 9550.52 1695.58 10019.74 1687.81 10488.95 1680.62 10958.17 1673.92 11427.39 1667.63 12054.96 1659.76 12682.54 1652.38 13310.12 1645.41 13937.70 1638.78 14565.28 1632.45 15668.14 1631.58 16522.81 1638.11 17377.48 1646.55 18232.15 1654.31 19086.82 1661.05 19941.49 1667.38 20913.19 1669.25 21884.89 1668.21 22856.60 1666.42 23828.30 1664.85 25050.85 1663.52 26273.40 1662.56 27495.95 1661.88 28718.51 1661.47 30465.65 1661.22 32212.79 1661.36 33959.93 1661.88 35707.08 1662.72 38886.47 1664.94 42065.85 1667.94 45245.24 1671.55 48424.63 1675.76 51604.02 1680.51 55947.60 1687.67 60291.18 1695.42 61402.01 1697.48 62512.85 1694.08 63623.68 1687.89 64734.52 1681.26 66004.34 1674.29 67274.16 1668.07 68543.98 1662.43 69813.80 1657.26 71844.73 1650.02 71899.57 1649.83 71954.40 1649.64 71979.50 1649.55 71996.01 1649.49 72009.28 1651.79 72022.56 1654.35 72035.83 1656.79 72062.23 1661.07 72088.64 1664.84 72115.04 1668.15 72174.39 1674.43 72233.73 1679.21 72293.08 1682.82 72352.42 1685.49 72477.70 1689.04 72602.98 1690.44 72728.27 1690.49 72853.55 1689.70 73071.62 1687.38 73289.69 1684.35 73507.77 1681.07 73725.84 1677.76 74108.25 1672.13 74490.66 1666.80 74873.06 1661.84 75255.47 1657.22 75761.78 1651.54 76268.08 1646.29 76774.39 1641.41 77280.69 1636.85 78061.69 1630.41 78842.70 1624.55 79623.70 1619.17 80404.70 1614.20 81185.70 1609.56 82421.62 1602.83 83657.54 1596.76 84893.46 1591.22 86129.38 1586.14 87365.30 1581.41 88601.21 1577.01 89996.08 1572.39 91390.95 1568.09 92785.82 1564.04 94180.69 1560.21 95575.55 1556.57 97781.29 1551.14 99987.02 1546.06 102192.75 1541.26 104398.48 1536.67 106604.21 1532.24 111218.05 1523.40 115831.88 1515.00 120445.72 1506.92 125059.55 1499.06 131205.84 1488.85 137352.14 1478.85 143498.43 1469.03 149644.73 1459.37 155791.02 1449.85 168657.43 1430.35 181523.84 1411.39 194390.25 1392.95 196073.18 1390.58 197756.10 1388.22 199439.03 1385.87 200000.00 1385.09