name: glathida version: 4.0.0-beta created: '2021-07-21T13:44:35Z' id: https://doi.org/10.5904/wgms-glathida-2020-10 title: Glacier Thickness Database (GlaThiDa) description: |- Internationally collected, standardized dataset on glacier thickness from in-situ and remotely sensed observations, based on data submissions, literature review and airborne data from NASA’s Operation IceBridge. The latest (development) version of GlaThiDa is available from https://gitlab.com/wgms/glathida. Since the data may contain errors, we strongly suggest performing quality checks and, in case of ambiguities, to contact us as well as the original investigators and agencies. Bug reports, data submissions, and other issues should be posted to the issue tracker at https://gitlab.com/wgms/glathida/-/issues. GlaThiDa is a contribution to the International Association of Cryospheric Sciences (IACS) working group on glacier ice thickness estimation (https://cryosphericsciences.org/activities/ice-thickness) chaired by Daniel Farinotti, Liss Marie Andreassen and Huilin Li. publications: - author: Ethan Welty, Michael Zemp, Francisco Navarro, Matthias Huss, Johannes J. Fürst, Isabelle Gärtner-Roer, Johannes Landmann, Horst Machguth, Kathrin Naegeli, Liss M. Andreassen, Daniel Farinotti, Huilin Li, and GlaThiDa Contributors title: Worldwide version-controlled database of glacier thickness observations journal: Earth System Science Data year: 2020 path: https://doi.org/10.5194/essd-2020-87 - author: Isabelle Gärtner-Roer, Kathrin Naegeli, Matthias Huss, Thomas Knecht, Horst Machguth, and Michael Zemp title: A database of worldwide glacier thickness observations journal: Global and Planetary Change year: 2014 path: https://doi.org/10.1016/j.gloplacha.2014.09.003 homepage: https://www.gtn-g.ch/data_catalogue_glathida profile: tabular-data-package publisher: World Glacier Monitoring Service (WGMS) temporalCoverage: 1935/2018-07-26 spatialCoverage: Global languages: - en licenses: - title: Creative Commons Attribution 4.0 International name: CC-BY-4.0 path: https://creativecommons.org/licenses/by/4.0 citation: |- GlaThiDa Consortium (2020): Glacier Thickness Database 3.1.0. World Glacier Monitoring Service, Zurich, Switzerland (https://doi.org/10.5904/wgms-glathida-2020-10) To cite a subset of the data, refer to the investigators and references listed in the database. For example – Dowdeswell et al. (2002), in: GlaThiDa Consortium (2020): Glacier Thickness Database 3.1.0. World Glacier Monitoring Service, Zurich, Switzerland (https://doi.org/10.5904/wgms-glathida-2020-10) The GlaThiDa Consortium consists of the authors and contributors listed below. contributors: - title: Ethan Welty organization: 'University of Colorado: Institute of Arctic and Alpine Research, United States' role: author - title: Francisco J. Navarro organization: 'Universidad Politécnica de Madrid: Escuela Técnica Superior de Ingenieros de Telecomunicación (ETSIT), Spain' role: author - title: Johannes Fürst organization: 'University of Erlangen–Nuremberg (FAU): Institute of Geography, Germany' role: author - title: Isabelle Gärtner-Roer organization: University of Zürich, Switzerland role: author - title: Johannes Landmann organization: University of Zürich, Switzerland role: author - title: Kathrin Naegeli organization: University of Fribourg, Switzerland role: author - title: Matthias Huss organization: 'University of Fribourg: Laboratory of Hydraulics, Hydrology and Glaciology (VAW), Switzerland' role: author - title: Thomas Knecht organization: University of Zürich, Switzerland role: author - title: Horst Machguth organization: University of Zürich, Switzerland role: author - title: Michael Zemp organization: University of Zürich, Switzerland role: author - title: Jakob Abermann organization: Asiaq Greenland Survey, Greenland role: contributor - title: Songtao Ai organization: Wuhan University, China role: contributor - title: Brian Anderson organization: 'Victoria University of Wellington: Antarctic Research Centre, New Zealand' role: contributor - title: Liss Marie Andreassen organization: Norwegian Water Resources and Energy Directorate (NVE), Norway role: contributor - title: Serguei M. Arkhipov organization: 'Russian Academy of Sciences: Institute of Geography (IGRAS), Russia' role: contributor - title: Izumi Asaji organization: Hokkaido University, Japan role: contributor - title: Andreas Bauder organization: 'Swiss Federal Institute of Technology (ETH) Zürich: Laboratory of Hydraulics, Hydrology and Glaciology (VAW), Switzerland' role: contributor - title: Jostein Bakke organization: 'University of Bergen: Department of Earth Sciences, Norway' role: contributor - title: Toby J. Benham organization: Scott Polar Research Institute, United Kingdom role: contributor - title: Douglas I. Benn organization: University of Saint Andrews, United Kingdom role: contributor - title: Daniel Binder organization: Central Institute for Meteorology and Geodynamics (ZAMG), Austria role: contributor - title: Elisa Bjerre organization: 'Technical University of Denmark: Arctic Technology Centre, Denmark' role: contributor - title: Helgi Björnsson organization: University of Iceland, Iceland role: contributor - title: Norbert Blindow organization: Institute for Geophysics, University of Münster, Germany role: contributor - title: Pascal Bohleber organization: 'Austrian Academy of Sciences (ÖAW): Institute for Interdisciplinary Mountain Research (IGF), Austria' role: contributor - title: Eliane Brändle organization: University of Fribourg, Switzerland role: contributor - title: Gino Casassa organization: 'University of Magallanes: GAIA Antarctic Research Center (CIGA), Chile' role: contributor - title: Jorge Luis Ceballos organization: Institute of Hydrology, Meteorology and Environmental Studies (IDEAM), Colombia role: contributor - title: Julian A. Dowdeswell organization: Scott Polar Research Institute, United Kingdom role: contributor - title: Felipe Andres Echeverry Acosta role: contributor - title: Hallgeir Elvehøy organization: Norwegian Water Resources and Energy Directorate (NVE), Norway role: contributor - title: Rune V. Engeset organization: Norwegian Water Resources and Energy Directorate (NVE), Norway role: contributor - title: Daniel Farinotti organization: Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Switzerland role: contributor - title: Andrea Fischer organization: Institute of Interdisciplinary Mountain Research (IGF), Austria role: contributor - title: Mauro Fischer organization: University of Fribourg, Switzerland role: contributor - title: Gwenn E. Flowers organization: 'Simon Fraser University: Department of Earth Sciences, Canada' role: contributor - title: Erlend Førre organization: 'University of Bergen: Department of Earth Sciences, Norway' role: contributor - title: Yoshiyuki Fujii organization: National Institute of Polar Research, Japan role: contributor - title: Johannes Fürst organization: 'University of Erlangen–Nuremberg (FAU): Institute of Geography, Germany' role: contributor - title: Isabelle Gärtner-Roer organization: University of Zürich, Switzerland role: contributor - title: Mariusz Grabiec organization: University of Silesia in Katowice, Poland role: contributor - title: Jon Ove Hagen organization: University of Oslo, Norway role: contributor - title: Svein-Erik Hamran organization: University of Oslo, Norway role: contributor - title: Lea Hartl organization: Institute of Interdisciplinary Mountain Research (IGF), Austria role: contributor - title: Robert Hawley organization: Dartmouth College, United States role: contributor - title: Kay Helfricht organization: Institute of Interdisciplinary Mountain Research (IGF), Austria role: contributor - title: Matthias Huss organization: 'University of Fribourg: Laboratory of Hydraulics, Hydrology and Glaciology (VAW), Switzerland' role: contributor - title: Elisabeth Isaksson organization: Norwegian Polar Institute, Norway role: contributor - title: Jacek Jania organization: University of Silesia in Katowice, Poland role: contributor - title: Robert W. Jacobel organization: 'Saint Olaf College: Physics Department, United States' role: contributor - title: Michael Kennett organization: Norwegian Water Resources and Energy Directorate (NVE), Norway role: contributor - title: Bjarne Kjøllmoen organization: Norwegian Water Resources and Energy Directorate (NVE), Norway role: contributor - title: Thomas Knecht organization: University of Zürich, Switzerland role: contributor - title: Jack Kohler organization: Norwegian Polar Institute, Norway role: contributor - title: Vladimir Kotlyakov organization: 'Russian Academy of Sciences: Institute of Geography (IGRAS), Russia' role: contributor - title: Steen Savstrup Kristensen organization: 'Technical University of Denmark: Department of Space Research and Space Technology (DTU Space), Denmark' role: contributor - title: Stanislav Kutuzov organization: University of Reading, United Kingdom role: contributor - title: Johannes Landmann organization: University of Zürich, Switzerland role: contributor - title: Javier Lapazaran organization: Universidad Politécnica de Madrid, Spain role: contributor - title: Tron Laumann organization: Norwegian Water Resources and Energy Directorate (NVE), Norway role: contributor - title: Ivan Lavrentiev organization: 'Russian Academy of Sciences: Institute of Geography (IGRAS), Russia' role: contributor - title: Huilin Li organization: 'Chinese Academy of Sciences: Tianshan Glaciological Station, China' role: contributor - title: Katrin Lindbäck organization: Norwegian Polar Institute, Norway role: contributor - title: Peter Lisager organization: Asiaq Greenland Survey, Greenland role: contributor - title: Horst Machguth organization: University of Zürich, Switzerland role: contributor - title: Francisco Machío organization: Universidad Internacional de La Rioja (UNIR), Spain role: contributor - title: Gerhard Markl organization: Institute of Interdisciplinary Mountain Research (IGF), Austria role: contributor - title: Enrico Mattea organization: 'University of Fribourg: Department of Geography, Switzerland' role: contributor - title: Kjetil Melvold organization: Norwegian Water Resources and Energy Directorate (NVE), Norway role: contributor - title: Laurent Mingo organization: Blue System Integration Ltd., Canada role: contributor - title: Christian Mitterer organization: Institute of Interdisciplinary Mountain Research (IGF), Austria role: contributor - title: Andri Moll organization: University of Zürich, Switzerland role: contributor - title: Kathrin Naegeli organization: University of Fribourg, Switzerland role: contributor - title: Francisco J. Navarro organization: 'Universidad Politécnica de Madrid: Escuela Técnica Superior de Ingenieros de Telecomunicación (ETSIT), Spain' role: contributor - title: Ian Owens organization: 'University of Canterbury: Department of Geography, New Zealand' role: contributor - title: Finnur Pálsson organization: University of Iceland, Iceland role: contributor - title: Rickard Pettersson organization: Uppsala University, Sweden role: contributor - title: Rainer Prinz organization: 'University of Graz: Department of Geography and Regional Science, Austria' role: contributor - title: Ya.-M.K. Punning organization: 'Estonian Academy of Sciences (USSR Academy of Sciences-Estonia): Institute of Geology, Estonia' role: contributor - title: Antoine Rabatel organization: University Grenoble Alpes, France role: contributor - title: Ian Raphael organization: Dartmouth College, United States role: contributor - title: David Rippin organization: University of York, United Kingdom role: contributor - title: Andrés Rivera organization: Centro de Estudios Científicos (CECs), Chile role: contributor - title: José Luis Rodríguez Lagos organization: Centro de Estudios Científicos (CECs), Chile role: contributor - title: John Sanders organization: 'University of California, Berkeley: Department of Earth and Planetary Science, United States' role: contributor - title: Albane Saintenoy organization: University of Paris-Sud, France role: contributor - title: Arne Chr. Sætrang organization: Norwegian Polar Institute, Norway role: contributor - title: Marius Schaefer organization: 'Austral University of Chile: Institute of Physical and Mathematical Sciences (ICFM), Chile' role: contributor - title: Stefan Scheiblauer organization: Environmental Earth Observation Information Technology (ENVEO IT GmbH), Austria role: contributor - title: Thomas V. Schuler organization: University of Oslo, Norway role: contributor - title: Heïdi Sevestre organization: University of Saint Andrews, United Kingdom role: contributor - title: Bernd Seiser organization: Institute of Interdisciplinary Mountain Research (IGF), Austria role: contributor - title: Ingvild Sørdal organization: 'University of Oslo: Department of Geosciences, Norway' role: contributor - title: Jakob Steiner organization: 'University of Utrecht: Faculty of Geosciences, Netherlands' role: contributor - title: Peter Alexander Stentoft organization: 'Technical University of Denmark: Arctic Technology Centre (ARTEK), Denmark' role: contributor - title: Martin Stocker-Waldhuber organization: 'Technical University of Denmark: Arctic Technology Centre (ARTEK), Denmark' role: contributor - title: Bernd Seiser organization: Institute of Interdisciplinary Mountain Research (IGF), Austria role: contributor - title: Shin Sugiyama organization: 'Hokkaido University: Institute of Low Temperature Science, Japan' role: contributor - title: Rein Vaikmäe organization: Tallinn University of Technology, Estonia role: contributor - title: Evgeny Vasilenko organization: Academy of Sciences of Uzbekistan, Uzbekistan role: contributor - title: Nat J. Wilson organization: 'Simon Fraser University: Department of Earth Sciences, Canada' role: contributor - title: Victor S. Zagorodnov organization: 'Russian Academy of Sciences: Institute of Geography (IGRAS), Russia' role: contributor - title: Rodrigo Zamora organization: Centro de Estudios Científicos (CECs), Chile role: contributor - title: Michael Zemp organization: University of Zürich, Switzerland role: contributor sources: - title: Ice thickness measurements on South Tyrolean glaciers 1996-2014 path: https://doi.org/10.1594/PANGAEA.849390 - title: Ground-penetrating radar (GPR) point measurements of ice thickness in Austria path: https://doi.org/10.1594/PANGAEA.849497 - title: Ice thickness of Kilimanjaro's Northern Ice Field mapped by ground-penetrating radar path: https://doi.org/10.1594/PANGAEA.867908 - title: Swiss Glacier Ice Thickness (release 2018) path: https://doi.org/10.18750/icethickness.2018.r2018 - title: Subglacial topography, ice thickness, and bathymetry of Kongsfjorden, northwestern Svalbard path: https://doi.org/10.21334/npolar.2017.702ca4a7 - title: Pre-IceBridge MCoRDS L2 Ice Thickness, Version 1 path: https://doi.org/10.5067/QKMTQ02C2U56 - title: IceBridge HiCARS 1 L2 Geolocated Ice Thickness, Version 1 path: https://doi.org/10.5067/F5FGUT9F5089 - title: IceBridge HiCARS 2 L2 Geolocated Ice Thickness, Version 1 path: https://doi.org/10.5067/9EBR2T0VXUDG - title: IceBridge MCoRDS L2 Ice Thickness, Version 1 path: https://doi.org/10.5067/GDQ0CUCVTE2Q - title: IceBridge PARIS L2 Ice Thickness, Version 1 path: https://doi.org/10.5067/OMEAKG6GIJNB - title: IceBridge WISE L2 Ice Thickness and Surface Elevation, Version 1 path: https://doi.org/10.5067/0ZBRL3GY720R resources: - name: survey title: Surveys description: Ice thickness surveys, where each 'survey' represents one or more field campaigns (spanning one or more glaciers, perhaps over multiple years) sharing the same survey method, investigators, agencies, and literature references. All thickness tables (`glacier`, `band`, and `point`) link back to this table. path: data/survey.csv format: csv mediatype: text/csv encoding: utf-8 dialect: header: true delimiter: ',' lineTerminator: "\n" quoteChar: '"' doubleQuote: true profile: tabular-data-resource schema: fields: - name: id title: Identifier description: Unique survey identifier. type: integer constraints: required: true unique: true - name: from_date title: First date description: First date of thickness measurements or, if not known precisely, the earliest possible date (e.g. '2019' -> '2019-01-01'). type: date format: '%Y-%m-%d' - name: to_date title: Last date description: Last date of thickness measurements or, if not known precisely, the latest possible date (e.g. '2019' -> '2019-12-31'). type: date format: '%Y-%m-%d' - name: platform title: Platform description: |- Survey platform. - air: Airborne - ground: Terrestrial - other: Other (should be described in `method_details`) type: string constraints: enum: ['air', 'ground', 'other'] - name: method title: Method description: |- Survey method. - drill: Drilling (mechanical, hydrothermal, etc) - radar: Ground penetrating radar - electromagnetic - seismic - gravimetric - other: Should be described in `method_details` type: string constraints: enum: ['drill', 'radar', 'electromagnetic', 'seismic', 'gravimetric', 'other'] - name: method_details title: Method details description: Details useful to assess the accuracy of the ice thickness measurements (e.g. 'GPR full-range system, 100-MHz shielded antenna, constant wave velocity in ice of 0.168 m per ns'). Cannot contain double quotes (") or whitespace other than space. type: string constraints: pattern: '[^"\s]+( [^"\s]+)*' - name: investigators title: Investigators description: Names of the people that performed the survey or processed the data, as a pipe-delimited list with identifiers such as affiliation or ORCID (https://orcid.org) in parentheses (e.g. 'Jane Doe (0000-0001-8046-2210) | John Smith | Nanny Murth (University Hill)'). Cannot contain double quotes (") or whitespace other than space. type: string constraints: pattern: '[^"\s]+( [^"\s]+)*' - name: agencies title: Agencies description: Names of the agencies that sponsored the survey or hold the data, as a pipe-delimited list with identifiers such as acronym or country in parentheses (e.g. 'Ufficio Idrografico di Bolzano | University of Fribourg (Switzerland)'). Cannot contain double quotes (") or whitespace other than space. type: string constraints: pattern: '[^"\s]+( [^"\s]+)*' - name: references title: References description: |- References to published literature describing the survey, as a pipe-delimited list. Each reference should include at least first author's last name, year, title, and URL in the format `{authors} ({year}): {title} ({url})` (e.g. 'Sanders et al. (2010): Dynamics of an alpine cirque glacier (https://doi.org/10.2475/08.2010.03)'). If a canonical URL (such as a DOI) does not exist, additional information should be provided, in the format `{authors} ({year}): {title}. {journal}, {volume}({issue}), {pages}` (e.g. 'Sanders et al. (2010): Dynamics of an alpine cirque glacier. American Journal of Science, 310(8), 753-773'). Cannot contain double quotes (") or whitespace other than space. type: string constraints: pattern: '[^"\s]+( [^"\s]+)*' - name: remarks title: Remarks description: Important information about the overall survey not included elsewhere. Cannot contain double quotes (") or whitespace other than space. type: string constraints: pattern: '[^"\s]+( [^"\s]+)*' missingValues: [''] primaryKey: ['id'] - name: glacier title: 'Thickness: By glacier' description: The name, location, and estimated thickness of surveyed glaciers. This table is required for any thickness estimate of a glacier or glacier elevation band (table `band`), but may optionally be used to assign point measurements (table `point`) to a named glacier. path: data/glacier.csv format: csv mediatype: text/csv encoding: utf-8 dialect: header: true delimiter: ',' lineTerminator: "\n" quoteChar: '"' doubleQuote: true profile: tabular-data-resource schema: fields: - name: id title: Identifier description: Unique identifier. type: integer constraints: required: true unique: true - name: survey_id title: Survey identifier description: Link to the corresponding survey. type: integer constraints: required: true - name: name title: Name description: Full name of the glacier (as would appear on a map) in any language or script (e.g. 'Columbia Glacier', 'Übeltalferner', 'Ghiacciaio del Basòdino'). If needed, parentheses are used to specify an unnamed subset of the glacier (e.g. 'Urumqi Glacier No. 1 (east branch)'). Cannot contain double quotes (") or whitespace other than space. type: string constraints: pattern: '[^"\s]+( [^"\s]+)*' - name: external_db title: External database description: |- Database to which `external_id` refers, if provided. - GLIMS: Global Land Ice Measurements from Space - RGI: Randolph Glacier Inventory - WGI: World Glacier Inventory - FOG: Fluctuations of Glaciers - AGI: Australian Glacier Inventory - NVE: Norwegian Water Resources and Energy Directorate Atlas - other: Other (full name should be listed in `remarks`) type: string constraints: enum: ['GLIMS', 'RGI', 'WGI', 'FOG', 'AGI', 'NVE', 'other'] - name: external_id title: External identifier description: Identifier of the glacier in `external_db`. For the Randolph Glacier Inventory (RGI), the database version should be included as part of the glacier identifier (e.g. 'RGI60-07.00244'). Cannot contain double quotes (") or whitespace. type: string constraints: maxLength: 14 pattern: '[^"\s]+' - name: latitude title: Latitude (°, WGS 84) description: |- Latitude in decimal degrees (°, WGS 84). Positive values indicate the northern hemisphere and negative values indicate the southern hemisphere. Three decimal places may not be sufficient depending on the proximity to other glaciers. The point (`latitude`, `longitude`) should be in the upper part of the glacier ablation area, in the main channel, and sufficiently high so as not to be lost if the glacier retreats. type: number constraints: required: true minimum: -90 maximum: 90 - name: longitude title: Longitude (°, WGS 84) description: |- Longitude in decimal degrees (°, WGS 84). Positive values indicate east of the zero meridian and negative values indicate west of the zero meridian. Three decimal places may not be sufficient depending on the proximity to other glaciers. The point (`latitude`, `longitude`) should be in the upper part of the glacier ablation area, in the main channel, and sufficiently high so as not to be lost if the glacier retreats. type: number constraints: required: true minimum: -180 maximum: 180 - name: date title: Date (minimum) description: Date of the glacier thickness (`glacier.*_thickness`) or, if the survey lasted multiple days or the dates are not known precisely, the earliest possible date (e.g. '2019' -> '2019-01-01'). type: date format: '%Y-%m-%d' - name: max_date title: Maximum date description: Latest possible date of the glacier thickness (e.g. '2019' -> '2019-12-31'). Only used if different from `date`. type: date format: '%Y-%m-%d' - name: area title: Total area (km^2) description: Total glacier area (km^2). If the date for the area is different from `date`–`max_date`, it should be noted in `remarks`. type: number constraints: minimum: 0 - name: mean_slope title: Mean glacier slope (°) description: Mean surface slope over the glacier (°), as an integer. If the date for the slope is different from `date`–`max_date`, it should be noted in `remarks`. type: integer constraints: minimum: 0 maximum: 90 - name: mean_thickness title: Mean glacier thickness (m) description: Mean ice thickness (m), as an integer. Ideally, this represents the interpolated mean over the entire glacier rather than the mean of the individual thickness measurements. Otherwise, it should be noted in `flag` and `remarks`. type: integer constraints: minimum: 0 maximum: 9999 - name: mean_thickness_uncertainty title: Uncertainty of mean glacier thickness (m) description: Estimated random error of `mean_thickness` (m), as an integer. type: integer constraints: minimum: 0 maximum: 9999 - name: max_thickness title: Maximum glacier thickness (m) description: Maximum ice thickness (m), as an integer. type: integer constraints: minimum: 0 maximum: 9999 - name: max_thickness_uncertainty title: Uncertainty of maximum glacier thickness (m) description: Estimated random error of `max_thickness` (m), as an integer. type: integer constraints: minimum: 0 maximum: 9999 - name: number_points title: Number of points description: Number of points used to estimate the thickness of the glacier (`glacier.*_thickness`) or of its elevation bands (`band.*_thickness`). type: integer constraints: minimum: 0 - name: number_profiles title: Number of profiles description: Number of profiles used to estimate the thickness of the glacier (`glacier.*_thickness`) or of its elevation bands (`band.*_thickness`). type: integer constraints: minimum: 0 - name: length_profiles title: Length of profiles (km) description: Length of survey profiles (km) used to estimate the thickness of the glacier (`glacier.*_thickness`) or of its elevation bands (`band.*_thickness`). type: number constraints: minimum: 0 - name: interpolation_method title: Interpolation method description: |- Interpolation method used to estimate glacier or elevation band ice thickness from survey points. - inverse distance: [Inverse distance weighting](https://en.wikipedia.org/wiki/Inverse_distance_weighting) (IDW) - triangulation: Triangulation, including [triangulated irregular network](https://en.wikipedia.org/wiki/Triangulated_irregular_network) (TIN) - kriging: [Kriging](https://en.wikipedia.org/wiki/Kriging), also known as Gaussian process regression - anudem: Drainage-enforcing algorithm [ANUDEM](https://fennerschool.anu.edu.au/research/products/anudem), including ArcInfo TOPOGRID and ArcGIS Topo to Raster - spline: [Spline](https://en.wikipedia.org/wiki/Spline_interpolation) functions - minimum curvature: Minimum curvature, including with [tension](https://doi.org/10.1190/1.1442837) - natural neighbor: [Natural neighbor](https://en.wikipedia.org/wiki/Natural_neighbor_interpolation) - mean - other: Should be described in `remarks` type: string constraints: enum: ['inverse distance', 'triangulation', 'kriging', 'anudem', 'spline', 'minimum curvature', 'natural neighbor', 'mean', 'other'] - name: flag title: Quality flag description: |- Whether glacier thickness is suspect or limited to parts of the glacier. All issues should be described in `remarks`. - suspect: Suspect glacier thickness - partial: Glacier thickness limited to parts of the glacier - other: Other issue type: string constraints: enum: ['suspect', 'partial', 'other'] - name: remarks title: Remarks description: Important information about the survey – specific to the glacier – not included elsewhere. Cannot contain double quotes (") or whitespace other than space. type: string constraints: pattern: '[^"\s]+( [^"\s]+)*' missingValues: [''] primaryKey: ['id'] foreignKeys: - fields: ['survey_id'] reference: resource: survey fields: ['id'] - name: band title: 'Thickness: By glacier elevation band' description: Ice thickness by bands of surface elevation, typically derived from maps of ice thickness. path: data/band.csv format: csv mediatype: text/csv encoding: utf-8 dialect: header: true delimiter: ',' lineTerminator: "\n" quoteChar: '"' doubleQuote: true profile: tabular-data-resource schema: fields: - name: glacier_id title: Glacier survey identifier description: Link to the corresponding glacier survey. type: integer constraints: required: true - name: from_elevation title: Lower elevation bound (m) description: Lower boundary of the surface elevation band (m), as an integer. Elevations should be relative to mean sea level (geoid) unless noted in `remarks`. type: integer constraints: required: true maximum: 9999 - name: to_elevation title: Upper elevation bound (m) description: Upper boundary of the surface elevation band (m), as an integer. Elevations should be relative to mean sea level (geoid) unless noted in `remarks`. type: integer constraints: required: true maximum: 9999 - name: date title: Date (minimum) description: Date of the elevation band thickness (`band.*_thickness`) or, if the survey lasted multiple days or the dates are not known precisely, the earliest possible date (e.g. '2019' -> '2019-01-01'). type: date format: '%Y-%m-%d' - name: max_date title: Maximum date description: Latest possible date of the elevation band thickness survey (e.g. '2019' -> '2019-12-31'). Only used if different from `date`. type: date format: '%Y-%m-%d' - name: elevation_date title: Elevation date (minimum) description: Date of the surface elevation (`band.*_elevation`) or, if the survey lasted multiple days or the dates are not known precisely, the earliest possible date (e.g. '2019' -> '2019-01-01'). type: date format: '%Y-%m-%d' - name: max_elevation_date title: Maximum elevation date description: Latest possible date of the surface elevation (e.g. '2019' -> '2019-12-31'). Only used if different from `elevation_date`. type: date format: '%Y-%m-%d' - name: area title: Total area (km^2) description: Total glacier area (km^2) for the elevation band. If the date for the area is different from `date`–`max_date`, it should be noted in `remarks`. type: number constraints: minimum: 0 - name: mean_slope title: Mean slope (°) description: Mean surface slope (°), as an integer, for the elevation band. If the date for the slope is different from `date`–`max_date`, it should be noted in `remarks`. type: integer constraints: minimum: 0 maximum: 90 - name: mean_thickness title: Mean thickness (m) description: Mean ice thickness (m), as an integer, for the elevation band. Ideally, this is the interpolated mean of the entire elevation band rather than the mean of the individual thickness measurements. Otherwise, it should be noted in `flag` and `remarks`. type: integer constraints: required: true minimum: 0 maximum: 9999 - name: mean_thickness_uncertainty title: Uncertainty of mean thickness (m) description: Estimated random error of `mean_thickness` (m), as an integer. type: integer constraints: minimum: 0 maximum: 9999 - name: max_thickness title: Maximum thickness (m) description: Maximum ice thickness (m), as an integer, for the elevation band. type: integer constraints: minimum: 0 maximum: 9999 - name: max_thickness_uncertainty title: Uncertainty of maximum thickness (m) description: Estimated random error of `max_thickness` (m), as an integer. type: integer constraints: minimum: 0 maximum: 9999 - name: flag title: Quality flag description: |- Whether ice thickness is suspect or limited to parts of the elevation band. Issues specific to the elevation band should be described in `remarks` while issues common to all elevation bands should be described in `glacier.remarks`. - suspect: Suspect elevation band thickness - partial: Elevation band thickness limited to parts of the elevation band - other: Other issue type: string constraints: enum: ['suspect', 'partial', 'other'] - name: remarks title: Remarks description: Important information about the survey – specific to the elevation band – not included elsewhere. Cannot contain double quotes (") or whitespace other than space. type: string constraints: pattern: '[^"\s]+( [^"\s]+)*' missingValues: [''] primaryKey: ['glacier_id', 'from_elevation', 'to_elevation'] foreignKeys: - fields: ['glacier_id'] reference: resource: glacier fields: ['id'] - name: point title: 'Thickness: By point' description: Glacier thickness measured at specific points. path: data/point.csv format: csv mediatype: text/csv encoding: utf-8 dialect: header: true delimiter: ',' lineTerminator: "\n" quoteChar: '"' doubleQuote: true profile: tabular-data-resource schema: fields: - name: survey_id title: Survey identifier description: Link to the corresponding survey. type: integer constraints: required: true - name: glacier_id title: Glacier identifier description: Link to the corresponding glacier survey, if applicable. type: integer - name: profile_id title: Profile identifier description: Identifier for the survey profile to which the point belongs (if applicable). Should serve to distinguish between different profiles and sort the profiles in the order in which they were collected (e.g. 1, 2, 3, ...). type: string constraints: maxLength: 18 - name: point_id title: Point identifier description: Identifier for the point. Should serve to link back to the original data and/or to sort the points in the order in which they were collected (e.g. 1, 2, 3, ...). type: string constraints: required: true maxLength: 12 - name: date title: Date (minimum) description: Date of the point thickness (`thickness`) or, if the date is not known precisely, the earliest possible date (e.g. '2019' -> '2019-01-01'). type: date format: '%Y-%m-%d' - name: max_date title: Maximum date description: Latest possible date of the point thickness (e.g. '2019' -> '2019-12-31'). Only used if different from `date`. type: date format: '%Y-%m-%d' - name: elevation_date title: Elevation date (minimum) description: Date of the surface elevation (`elevation`) or, if the date is not known precisely, the earliest possible date (e.g. '2019' -> '2019-01-01'). type: date format: '%Y-%m-%d' - name: max_elevation_date title: Maximum elevation date description: Latest possible date of the surface elevation (e.g. '2019' -> '2019-12-31'). Only used if different from `elevation_date`. type: date format: '%Y-%m-%d' - name: latitude title: Latitude (°, WGS 84) description: Latitude in decimal degrees (°, WGS 84). Positive values indicate the northern hemisphere and negative values indicate the southern hemisphere. type: number constraints: required: true minimum: -90 maximum: 90 - name: longitude title: Longitude (°, WGS 84) description: Longitude in decimal degrees (°, WGS 84). Positive values indicate east of the zero meridian and negative values indicate west of the zero meridian. type: number constraints: required: true minimum: -180 maximum: 180 - name: elevation title: Elevation (m) description: Point elevation (m), as an integer. Elevations should be relative to mean sea level (geoid) unless noted in `remarks`. type: integer constraints: maximum: 999999 - name: thickness title: Ice thickness (m) description: Ice thickness (m), as an integer, measured at the point. type: integer constraints: required: true minimum: 0 maximum: 9999 - name: thickness_uncertainty title: Uncertainty of ice thickness (m) description: Estimated random error of `thickness` (m), as an integer. type: integer constraints: minimum: 0 maximum: 9999 - name: flag title: Quality flag description: |- Whether ice thickness is suspect. Issues specific to the point should be described in `remarks` while issues common to all points should be described in `survey.remarks` (or `glacier.remarks`, if applicable). - suspect: Suspect ice thickness - other: Other issue type: string constraints: enum: ['suspect', 'other'] - name: remarks title: Remarks description: Important information about the survey – specific to the point – not included elsewhere. Cannot contain double quotes (") or whitespace other than space. type: string constraints: pattern: '[^"\s]+( [^"\s]+)*' missingValues: [''] foreignKeys: - fields: ['survey_id'] reference: resource: survey fields: ['id'] - fields: ['glacier_id'] reference: resource: glacier fields: ['id']