Chapter 2 of the Working Group I Contribution to the IPCC Sixth Assessment Report - Input data for Figure 2.13 (v20211022)

Input Data for Figure 2.13 from Chapter 2 of the Working Group I (WGI) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6).

Figure 2.13 shows the global trends in surface specific humidity and surface relative humidity over 1973-2019

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How to cite this dataset

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When citing this dataset, please include both the data citation below (under 'Citable as') and the following citation for the report component from which the figure originates:

Gulev, S.K., P.W. Thorne, J. Ahn, F.J. Dentener, C.M. Domingues, S. Gerland, D. Gong, D.S. Kaufman, H.C. Nnamchi, J. Quaas, J.A. Rivera, S. Sathyendranath, S.L. Smith, B. Trewin, K. von Schuckmann, and R.S. Vose, 2021: Changing State of the Climate System. In Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change[Masson-Delmotte, V., P. Zhai, A. Pirani, S.L. Connors, C. Péan, S. Berger, N. Caud, Y. Chen, L. Goldfarb, M.I. Gomis, M. Huang, K. Leitzell, E. Lonnoy, J.B.R. Matthews, T.K. Maycock, T. Waterfield, O. Yelekçi, R. Yu, and B. Zhou (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, pp. 287–422, doi:10.1017/9781009157896.004.

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Figure subpanels

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The figure has four panels, with input data provided for panels (a) HadISDH_blendq_1_0_0_2019f.nc and (c) HadISDH_blendRH_1_0_0_2019f.nc

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List of data provided

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This dataset contains global maps of specific and relative humidity trends over 1973-2019

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Data provided in relation to figure

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This dataset is the input data used in the code that generates panel (a) and panel (c) for figure 2.13

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Notes on reproducing the figure from the provided data

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The following changes to filenames were made to archive the data (due to filenaming restrictions). To use the data with any associated figure code, the filenames should be reverted.

HadISDH_blendq_1_0_0_2019f.nc -> HadISDH.blendq.1.0.0.2019f.nc

HadISDH_blendRH_1_0_0_2019f.nc -> HadISDH.blendRH.1.0.0.2019f.nc

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Sources of additional information

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The following weblinks are provided in the Related Documents section of this catalogue record:

- Link to the report component containing the figure (Chapter 2)

- Link to the Supplementary Material for Chapter 2, which contains details on the input data used in Table 2.SM.1

- Link to the figure on the IPCC AR6 website

Date (Publication): 2022-07-15T08:31:55

Date (Creation): 2022-07-15T08:31:55

Citation identifier: https://catalogue.ceda.ac.uk/uuid/02fd1d886bad40f3bb2eef3271900823

Citation identifier: NERC EDS Centre for Environmental Data Analysis / 02fd1d886bad40f3bb2eef3271900823

Citation identifier: doi / 10.5285/02fd1d886bad40f3bb2eef3271900823

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Unavailable	Rivera, Juan Antonio	Unavailable	Author
Unavailable	Willett, Kate	Unavailable	Author
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Custodian
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Distributor
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	pointofContact
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Publisher

Maintenance and update frequency: Not planned

Update scope: Dataset

Keywords

IPCC-DDC
IPCC
Intergovernmental Panel on Climate Change
AR6
WG1
WGI
Sixth Assessment Report
Working Group I
Physical Science Basis
Chapter 2
Changing state
Multi-millennial context
pre-industrial
Natural forcing
anthropogenic forcing
Radiative forcing
Large-scale indicators
observed changes
Modes of variability
Figure 2.13
global specific humidity
global relative humidity

GEMET - INSPIRE themes, version 1.0

atmospheric conditions

Access constraints: Other restrictions

Other constraints: Public data: access to these data is available to both registered and non-registered users.

Use constraints: Other restrictions

Other constraints: Under the following licence http://creativecommons.org/licenses/by/4.0/, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.

Spatial representation type: Grid

Language: English

Topic category

Climatology, meteorology, atmosphere

Begin date: 1973-01-01T12:00:00

End date: 2019-12-31T12:00:00

Unique resource identifier: WGS 84

Distribution format

Name	Version
txt, netCDF

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
	https://catalogue.ceda.ac.uk/uuid/02fd1d886bad40f3bb2eef3271900823	CEDA Data Catalogue Page

OnLine resource

Protocol	Linkage	Name
	http://data.ceda.ac.uk/badc/ar6_wg1/data/ch_02/inputdata_ch2_fig13/v20211022	DOWNLOAD

OnLine resource

Protocol	Linkage	Name
	https://www.ipcc.ch/report/ar6/wg1/downloads/report/IPCC_AR6_WGI_Chapter_02_Supplementary_Material.pdf	SUPPLEMENTARY MATERIAL FOR REPORT CHAPTER: Gulev, S.K., P.W. Thorne, J. Ahn, F.J. Dentener, C.M. Domingues, S. Gerland, D. Gong, D.S. Kaufman, H.C. Nnamchi, J. Quaas, J.A. Rivera, S. Sathyendranath, S.L. Smith, B. Trewin, K. von Schuckmann, and R.S. Vose, 2021: Changing State of the Climate System Supplementary Material. In Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change

OnLine resource

Protocol	Linkage	Name
	https://www.ipcc.ch/report/ar6/wg1/downloads/report/IPCC_AR6_WGI_Chapter_02.pdf	ORIGIN OF FIGURE (IPCC REPORT CHAPTER): Gulev, S.K., P.W. Thorne, J. Ahn, F.J. Dentener, C.M. Domingues, S. Gerland, D. Gong, D.S. Kaufman, H.C. Nnamchi, J. Quaas, J.A. Rivera, S. Sathyendranath, S.L. Smith, B. Trewin, K. von Schuckmann, and R.S. Vose, 2021: Changing State of the Climate System. In Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change

OnLine resource

Protocol	Linkage	Name
	https://www.ipcc.ch/report/ar6/wg1/figures/chapter-2/figure-2-13/	LINK TO FIGURE

Hierarchy level: Dataset

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication): 2010-12-08

Statement: Data produced by Intergovernmental Panel on Climate Change (IPCC) authors and supplied for archiving at the Centre for Environmental Data Analysis (CEDA) by the Technical Support Unit (TSU) for IPCC Working Group I (WGI).

Data curated on behalf of the IPCC Data Distribution Centre (IPCC-DDC).

Metadata

File identifier: 02fd1d886bad40f3bb2eef3271900823 XML

Metadata language: English

Character set: UTF8

Parent identifier: 3da412ad9912427d9bb808b57faa21a7
3da412ad9912427d9bb808b57faa21a7

Hierarchy level: Dataset

Date stamp: 2026-03-11T03:23:35

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Point of contact

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