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Version: 0.0.1 | Published: 20 Jul 2022 | Updated: 907 days ago

AR6 SROCC Data for Figure SPM.1: Past and future changes in the ocean and cryosphere

Dataset

Summary

Citation:

Tagliabue, Alessandro; Ekaykin, Alexey; Mazeron, Ben; Derkse, Chris; Abram, Nerilie; Hock, Regine; van Waal, Roderick; Frölicher, Thomas; Aschwanden, Mathias; Lambert, Erwin, 2022, AR6 SROCC Data for Figure SPM.1: Past and future changes in the ocean and cryosphere, MetadataWorks, https://doi.org/10.48490/cwtk-p051

DOI Name:

https://doi.org/10.48490/cwtk-p051

Documentation

Associated Media:

https://www.ipcc.ch/srocc/chapter/summary-for-policymakers/spm-a-observed-changes-and-impacts/srocc_spm1_final_rgb/

Description:

Data for Figure SPM.1 from the Special Report on the Ocean and Cryosphere in a Changing Climate (SROCC) of the Working Group II (WGII) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6). Traceability per panel to sections within the report provided in brackets as folllows: (a) Global mean surface air temperature change with likely range. {Box SPM.1, Cross-Chapter Box 1 in Chapter 1} Ocean-related changes with very likely ranges for (b) Global mean sea surface temperature change {Box 5.1, 5.2.2}; (c) Change factor in surface ocean marine heatwave days {6.4.1}; (d) Global ocean heat content change (0–2000 m depth). An approximate steric sea level equivalent is shown with the right axis by multiplying the ocean heat content by the global-mean thermal expansion coefficient (? ? 0.125 m per 1024 Joules)12 for observed warming since 1970 {Figure 5.1}; (h) Global mean surface pH (on the total scale). Assessed observational trends are compiled from open ocean time series sites longer than 15 years {Box 5.1, Figure 5.6, 5.2.2}; and (i) Global mean ocean oxygen change (100–600 m depth). Assessed observational trends span 1970–2010 centered on 1996 {Figure 5.8, 5.2.2}. Sea level changes with likely ranges for (m) Global mean sea level change. Hashed shading reflects low confidence in sea level projections beyond 2100 and bars at 2300 reflect expert elicitation on the range of possible sea level change {4.2.3, Figure 4.2}; and components from (e,f) Greenland and Antarctic ice sheet mass loss {3.3.1}; and (g) Glacier mass loss {Cross-Chapter Box 6 in Chapter 2, Table 4.1}. Further cryosphere-related changes with very likely ranges for (j) Arctic sea ice extent change for September13 {3.2.1, 3.2.2 Figure 3.3}; (k) Arctic snow cover change for June (land areas north of 60oN) {3.4.1, 3.4.2, Figure 3.10}; and (l) Change in near-surface (within 3–4 m) permafrost area in the Northern Hemisphere {3.4.1, 3.4.2, Figure 3.10}. Assessments of projected changes under the intermediate RCP4.5 and RCP6.0 scenarios are not available for all variables considered here, but where available can be found in the underlying report.

Is Part Of:

Special Report on the Ocean and Cryosphere in a Changing Climate (SROCC)

Coverage

Spatial Coverage:

Global

Start Date:

01 January 1950

End Date:

01 January 2300

Temporal Resolution:

ANNUAL

Provenance

Purpose:

Data supplied for archiving at the Centre for Environmental Data Analysis (CEDA) by the Technical Support Unit (TSU) for the Intergovernmental Panel on Climate Change (IPCC) Working Group II (WGII). Data curated on behalf of the IPCC Data Distribution Centre (IPCC-DDC).