RapidArcticWarming
Introduction
Spatial and temporal patterns of rapid Arctic warming events during the past 21,000 years are reconstructed using a new compilation of 300 paleoclimate proxy records. This compilation was created as part of the RapidArcticWarming Project. . 211 of the records are primarily sensitive to temperature, and represent a wide range of archive types including glacier ice (n = 10), marine sediment (n = 50), and terrestrial (e.g., lake) sediment (n = 121). An additional 89 records are interpreted to be sensitive to precipitation and effective moisture, most of which are derived from lake sediment pollen records.
LakeStatus21k
Introduction
LakeStatus21k is a global compilation of lake status records for the past 21,000 years. Lake basins are sensitive to changes in moisture balance, and this database synthesizes records that document past changes in lake status (e.g., lake level, hydrologic balance, lake area) to reconstruct regional and global hydroclimate variability. The compilation contains 436 records from 373 sites. The data are primarily sourced from the Oxford Lake Status databank (OLS) (n=86; Street-Perrott et al., 1989), which provides ordinal data measuring the vertical change in the elevation of the lake surface binned into three categories, namely high (70%–100% of total vertical range of lake fluctuation), intermediate (15%–70%), and low (0%–15%). These data were supplemented with 74 sites from the Global Lake Status Database (GLSDB; Harrison et al., 2003), which provide similar ordinal data but with increased spatial coverage in Eurasia from the inclusion of additional regional data compilations (Tarasov et al., 1996; Yu et al., 2001; Yu, 1995). If available, OLS and GLSDB data were replaced by newer, higher-resolution records from the same site. An additional 52 records are provided by the more recently created North America (n=28; Liefert and Shuman, 2020), eastern and southern Africa (n=19; De Cort et al., 2021), and Australian (n=5; Clerke, 2023) lake level databases, and another four records from west Africa (Shanahan et al., 2006), South America (Placzek et al., 2006), and Asia (Jiang et al., 2020; H. Xu et al., 2020) were identified according to the defined selection criteria. These data represent a variety of measurement types, ranging between relative lake status estimates similar to the OLS to more precise values of absolute water level elevation. Generally, the newer data provide improved measurement values which are more descriptive and more precise in age compared to the OLS data.
Great Barrier Reef Coral Database (GBRCD)
Introduction
The Great Barrier Reef Coral Skeletal Records Database (GBRCD) compiles 208 records from coral skeletal research conducted since the early 1990s. The database includes records from the Holocene to the present day. Records are from the northern, central, and southern GBR from inshore and offshore locations. This is a dynamic compilation, meaning that new datasets that meet the criteria for inclusion can be added and included in subsequent versions. See the criteria and data submission sections below for details.
HoloceneAbruptChange
Introduction
This compilation is an extensive collection of paleoclimate data appropriate for investigating abrupt change in the Holocene. The datasets were compiled by querying recent paleoclimate data compilations and searching public data repositories for records associated with abrupt events. All datasets are formatted in the Linked PaleoData framework and were given standardized metadata that describe the datasets and their interpretation, including the climate interpretation and seasonality.
LegacyClimate
Introduction
The LegacyClimate 1.0 database is a dataset of mean July temperature (TJuly), mean annual temperature (Tann), and annual precipitation (Pann) reconstructions from 2594 fossil pollen records from the Northern Hemisphere. The records span the entire Holocene, with some reaching back to the Last Glacial Period (last 30 kyr and beyond). This community-vetted, open-source, version-controlled database is intended to serve as a hub for paleoclimate data synthesis and data–model comparisons.
CoralHydro2k
Introduction
The PAGES (Past Global Changes) CoralHydro2k project has compiled a global database of coral-based reconstructions of sea surface temperature (SST) and salinity (SSS) for the Common Era (CE). The database is designed to increase the utility of these reconstructions for investigating past climate variability, comparing with climate model simulations, and for use in paleodata-assimilation projects. This is a dynamic compilation, meaning that new datasets that meet the criteria for inclusion can be added and included in subsequent versions. See the criteria and data submission sections below for details.
HoloceneHydroclimate
Introduction
The HoloceneHydroclimate database is a new global compilation of 1,288 terrestrial paleohydrology proxy records for the Holocene (11,700 yr BP to present) from 813 sites. The records are from a variety of archive types and are sensitive to hydroclimate variables such as moisture balance, precipitation, and temperature.See the criteria and data submission sections below for details.
FreeSoda
Introduction
This compilation provides records of Antarctic sea-ice from the last glacial-interglacial (G-IG) cycle (12,000-130,000 years) to allow for the investigation of interactions between sea ice and climate under a large range of mean climate states. The database compiles published qualitative and quantitative records of G-IG sea-ice from twenty-four marine sediment cores. All records include the combined relative abundances of the two sea-ice related diatoms Fragilariopsis curta and F. cylindrus (FCC), a qualitative indicator of winter sea-ice presence. Fourteen of the core records also have quantitative reconstructions of winter sea-ice concentrations (WSIC) and/or sea-ice duration (SID). This work was done as part of the Past Global Changes - Cycles of Sea-Ice Dynamics in the Earth system (PAGES_C-SIDE) project.
wNAm
Introduction
The wNAm database is a collection of Holocene temperature, hydroclimate, and circulation records from western North America. This is a dynamic compilation, meaning that new datasets that meet the criteria for inclusion can be added and included in subsequent versions. See the criteria and data submission sections below for details.
Data
Data access and LiPDverse visualizations are available here.
Publication
A data descriptor for the compilation was published in Earth System Science Data and is available here.
SISAL
Introduction
SISAL (Speleothem Isotope Synthesis and Analysis) is an international working group of the Past Global Changes (PAGES) project. Stable isotope records from speleothems provide information on past climate changes, particularly information that can be used to reconstruct past changes in precipitation and atmospheric circulation. The working group aims to provide a comprehensive compilation of speleothem isotope records for climate reconstruction and model evaluation. The second version of the SISAL database contains oxygen and carbon isotope measurements from 673 individual speleothem records from 293 cave systems worldwide. This is a dynamic compilation, meaning that new datasets that meet the criteria for inclusion can be added and included in subsequent versions. See the criteria and data submission sections below for details.
Iso2k
Introduction
The Iso2k database compiled the stable oxygen (\(\delta^{18}O\)) and hydrogen (\(\delta^{2}H\)) isotopic compositions of environmental waters such as precipitation, seawater, lake water, and soil and groundwater, as recorded in a variety of natural archives, including glaciers, ground ice, cave formations, corals, sclerosponges, mollusk shells, tree wood, lake sediments, and marine sediments. This is a dynamic compilation, meaning that new datasets that meet the criteria for inclusion can be added and included in subsequent versions. See the criteria and data submission sections below for details.
PalMod
Introduction
The PalMod data compilation is a multi-parameter marine palaeoclimate data synthesis that contains time series spanning 0 to 130,000 years ago. The compilation includes only time series for which a robust chronology based on benthic foraminifera \(\delta^{18}O\) and radiocarbon dating is available. Version 1.0.0 of the data product contains 896 time series from 143 individual sites, each associated with rich metadata, age–depth model ensembles, and information to refine and update the chronologies. Those 896 timeseries are comprised of 205 benthic foraminifera \(\delta^{18}O\) records; 169 of benthic foraminifera \(\delta^{13}C\); 131 of seawater temperature; 174 and 119 of planktonic foraminifera \(\delta^{18}O\) and \(\delta^{13}C\); and 44, 38 and 16 of carbonate, organic carbon and biogenic silica content, respectively.
Temperature 12k
Introduction
The Temperature 12k database was compiled to facilitate the study of multidecadal- to millennial-scale changes in climate over the past 12,000 years. This is a dynamic compilation, meaning that new datasets that meet the criteria for inclusion can be added and included in subsequent versions. See the criteria and data submission sections below for details.
PAGES 2k Data Coverage
Data
Data access and LiPDverse visualizations are available here.
Publication
A data descriptor for the compilation was published in Scientific Data and is available here.
PAGES 2k Temperature
PAGES 2k Data Coverage
Introduction
One of the products of Phase Two of the Pages2k project was this curated data product of temperature reconstructions for the past 2000 years. This is a dynamic compilation, meaning that new datasets that meet the criteria for inclusion can be added and included in subsequent versions. See the criteria and data submission sections below for details.
Data
Data access and LiPDverse visualizations are available here.
Publication
A data descriptor for the compilation was published in Scientific Data and is [available here]((https://www.nature.com/articles/sdata201788).
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