# 1500 Year Sedimentological and Geochemical Data from Lakes Tota and Siscunsi in the Northern Andes #----------------------------------------------------------------------- # 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 downloaded data. # If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # Description/Documentation lines begin with '#' followed by a space # Data lines have no '#' # # NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/39047 # 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-lake-39047.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Paleolimnology # # Dataset_DOI: 10.25921/ggb0-2987 # # Science_Keywords: #--------------------------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/paleolimnology/southamerica/colombia/bird2024/bird2024-RecordsUsed_Metadata.txt # Data_Download_Description: NOAA Template File; Records Used Metadata Table # # Related_Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/paleolimnology/southamerica/colombia/bird2024/bird2024-mcpc.txt # Related_Online_Description: NOAA Template File; NOAA Template File; Monte Carlo EOF Data # #--------------------------------------- # Contribution_Date # Date: 2024-02-22 #--------------------------------------- # File_Last_Modified_Date # Date: 2025-04-08 #--------------------------------------- # Title # Study_Name: 1500 Year Sedimentological and Geochemical Data from Lakes Tota and Siscunsi in the Northern Andes #--------------------------------------- # Investigators # Investigators: Bird, Broxton W.; Steinman, B.A.; Escobar, A.; Correa-Metrio, A.; Holper, K.; Gibson, D.K.; Mark, S.; Fonseca, H. #--------------------------------------- # Description_Notes_and_Keywords # Description: Elevations of lakes: Tota = 3015m; Siscunsi = 3680m # Provided Keywords: Medieval Climate Anomaly, Little Ice Age, Common Era, Paleoclimate, Neo Tropics, South America #--------------------------------------- # Publication # Authors: Bird, B.W., B.A. Steinman, J. Escobar, A. Correa-Metrio, K. Holper, D.K. Gibson, S. Mark, H. Fonseca # Published_Date_or_Year: 2024 # Published_Title: Synchronous tropical Andean hydroclimate variability during the last millennium # Journal_Name: Journal of Geophysical Research - Atmospheres # Volume: 129 # Edition: # Issue: 13 # Pages: # Report_Number: e2023JD040255 # DOI: 10.1029/2023JD040255 # Online_Resource: # Full_Citation: # Abstract: The impact of latitudinal variations in the Intertropical Convergence Zone (ITCZ) on northern Andean hydroclimate during the Medieval Climate Anomaly (MCA; 950–1,150 CE) and Little Ice Age (LIA; 1,300–1,850 CE) is uncertain. Synthesis of two new lacustrine paleoclimate records from the Eastern Colombian Andes with existing circum-Andean records shows that effective moisture anomalies were synchronous and in phase across the tropical Andes during the last millennium. During the MCA, when the ITCZ was shifted northward, topographically controlled responses in the northern Andes to vigorous atmospheric convection resulted in low precipitation and high evaporation, while precipitation was also reduced in the southern tropical Andes. During the LIA, precipitation decreased in the northern Andes as the ITCZ migrated southward but was offset by cooling that lowered evaporation, establishing high effective moisture. In the southern tropical Andes, the southward ITCZ position simultaneously strengthened precipitation, increasing effective moisture. MCA-like responses to continued warming trends could similarly reduce northern Andean precipitation while increasing evaporation, thereby lowering effective moisture and possibly reducing water resource availability. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: US National Science Foundation # Grant: Award 1445649 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Indiana University # Grant: International Development Fund and Research Support Funds Grant #--------------------------------------- # Site_Information # Site_Name: Circum-Andes Synthesis # Location: South America # Northernmost_Latitude: 10.712 # Southernmost_Latitude: -13.933 # Easternmost_Longitude: -65.170 # Westernmost_Longitude: -77.615 # Elevation_m: #--------------------------------------- # Data_Collection # Collection_Name: bird2024 RecordsUsed # First_Year: # Last_Year: # Time_Unit: # Core_Length_m: # Parameter_Keywords: # Notes: #--------------------------------------- # Synthesis Collection Metadata Fields # NOTE: These are the fields used to capture the metadata about data sources used in a synthesis study. # Each row of this table corresponds to a column in the SourceDataTable file listed above in the Online_Resource URLs. # The rows here are linked to the columns in the data table using the ID field. # Metadata fields that follow that are preceded by "##" in columns one and two. # Additional columns from contributor may be included below "notes" field. ## dataID dataset ID (site abbreviation used in Figure 1A) ## siteName Site Name ## elevation elevation of site in meters ## latitude latitude of site in decimal degrees North ## longitude longitude of site in decimal degrees East ## archiveType archive type of the collection ## variableUsed proxy measurement type ## Citation citation text or DOI for original publication source of data ## Original_Source_DOI Original Source URL or DOI(if available) for the data presented here #--------------------------------------- # RecordsUsed_Metadata: # Missing_Values: dataID siteName elevation latitude longitude archiveType variableUsed Citation Original_Source_DOI BLC L. Blanca 1620 8.335 -71.785 Lake Sediment Multi-proxy PC Polissar et al. 2013 CB Cariaco Basin 0 10.712 -65.170 Ocean Sediment Titanium Conc. Haug et al. 2001 https://doi.org/10.25921/dt4n-6e75 CAS Cascayunga (CAS-A,CAS-D) 930 -6.083 -77.217 Speleothem δ18O Reuter et al. 2009 https://doi.org/10.25921/qps2-8w14 HGP Huagapo (P00-H1,P09-H2) 3850 -11.267 -75.767 Speleothem δ18O / δ13C Kanner et al. 2013 https://doi.org/10.25921/1zev-v902 HIC Huascaran 5991 -9.111 -77.615 Ice Core δ18O Thompson et al. 1995 https://doi.org/10.25921/swwy-sg59 PAL Palestina (PAL03,PAL04) 900 -5.920 -77.350 Speleothem δ18O / δ13C Apaéstegui et al. 2014 https://doi.org/10.25921/swwy-sg59 PUM L. Pumacocha 4300 -10.699 -76.061 Lake Sediment (Bulk Carbonate) 18O Bird et al. 2011 https://doi.org/10.25921/skyb-2s59 QIC Quelccaya 5670 -13.933 -70.833 Ice Core δ18O / Accumulation Thompson et al. 1986 https://doi.org/10.25921/sp6t-sy70 UBQ L. Ubaque 2070 4.499 -73.935 Lake Sediment %Silt Bird et al. 2018 https://doi.org/10.25921/p7d2-dg59 VAL L. Valencia 407 10.201 -67.738 Lake Sediment %Calcite Curtis et al. 1999 https://doi.org/10.25921/7z2j-zn40 MUC L. Mucubaji 3570 4.7833 -70.833 Lake Sediment Magnetic Susceptibility Polissar et a., 2006 https://doi.org/10.25921/wgd7-k923 TOT L. Tota 3015 5.551 72.921 Lake Sediment MAP, MAT Correa‐Metrio et al., 2022 TOT L. Tota 3015 5.551 72.921 Lake Sediment %Clay, C/N This work https://doi.org/10.25921/ggb0-2987 SIS L. Siscunsi 3680 5.647 72.787 Lake Sediment %Clay, %Sand This work https://doi.org/10.25921/ggb0-2987