The hydrostatic control of load-induced height changes above subglacial Lake Vostok
- Autores
- Richter, Andreas Jorg; Schröder, Ludwig; Scheinert, Mirko; Popov, Sergey V.; Groh, Andreas; Willen, Matthias; Horwath, Martin; Dietrich, Reinhard
- Año de publicación
- 2022
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Lake Vostok, East Antarctica, represents an extensive water surface at the base of the ice sheet. Snow, ice and atmospheric pressure loads applied anywhere within the lake area produce a hydrostatic response, involving deformations of the ice surface, ice-water interface and particle horizons. A modelling scheme is developed to derive height changes of these surfaces for a given load pattern. It is applied to a series of load scenarios, and predictions based on load fields derived from a regional climate model are compared to observational datasets. Our results show that surface height changes due to snow-buildup anomalies are damped over the lake area, reducing the spatial standard deviation by one-third. The response to air pressure variations, in turn, adds surface height variability. Atmospheric pressure loads may produce height changes of up to ±4 cm at daily resolution, but decay rapidly with integration time. The hydrostatic load response has no significant impact neither on ICESat laser campaign biases determined over the lake area nor on vertical particle movements derived from GNSS observations.
Fil: Richter, Andreas Jorg. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Cs.astronomicas y Geofisicas. Laboratorio Maggia.; Argentina
Fil: Schröder, Ludwig. Technische Universität Dresden; Alemania
Fil: Scheinert, Mirko. Technische Universität Dresden; Alemania
Fil: Popov, Sergey V.. Polar Marine Geosurvey Expedition; Rusia. Saint Petersburg State University; Rusia
Fil: Groh, Andreas. Technische Universität Dresden; Alemania
Fil: Willen, Matthias. Technische Universität Dresden; Alemania
Fil: Horwath, Martin. Technische Universität Dresden; Alemania
Fil: Dietrich, Reinhard. Technische Universität Dresden; Alemania - Materia
-
ICE DYNAMICS
LASER ALTIMETRY
SUBGLACIAL LAKES - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/188250
Ver los metadatos del registro completo
id |
CONICETDig_42efdf49b522532ebaef3ef2b2a0d941 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/188250 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
The hydrostatic control of load-induced height changes above subglacial Lake VostokRichter, Andreas JorgSchröder, LudwigScheinert, MirkoPopov, Sergey V.Groh, AndreasWillen, MatthiasHorwath, MartinDietrich, ReinhardICE DYNAMICSLASER ALTIMETRYSUBGLACIAL LAKEShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Lake Vostok, East Antarctica, represents an extensive water surface at the base of the ice sheet. Snow, ice and atmospheric pressure loads applied anywhere within the lake area produce a hydrostatic response, involving deformations of the ice surface, ice-water interface and particle horizons. A modelling scheme is developed to derive height changes of these surfaces for a given load pattern. It is applied to a series of load scenarios, and predictions based on load fields derived from a regional climate model are compared to observational datasets. Our results show that surface height changes due to snow-buildup anomalies are damped over the lake area, reducing the spatial standard deviation by one-third. The response to air pressure variations, in turn, adds surface height variability. Atmospheric pressure loads may produce height changes of up to ±4 cm at daily resolution, but decay rapidly with integration time. The hydrostatic load response has no significant impact neither on ICESat laser campaign biases determined over the lake area nor on vertical particle movements derived from GNSS observations.Fil: Richter, Andreas Jorg. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Cs.astronomicas y Geofisicas. Laboratorio Maggia.; ArgentinaFil: Schröder, Ludwig. Technische Universität Dresden; AlemaniaFil: Scheinert, Mirko. Technische Universität Dresden; AlemaniaFil: Popov, Sergey V.. Polar Marine Geosurvey Expedition; Rusia. Saint Petersburg State University; RusiaFil: Groh, Andreas. Technische Universität Dresden; AlemaniaFil: Willen, Matthias. Technische Universität Dresden; AlemaniaFil: Horwath, Martin. Technische Universität Dresden; AlemaniaFil: Dietrich, Reinhard. Technische Universität Dresden; AlemaniaCambridge University Press2022-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/188250Richter, Andreas Jorg; Schröder, Ludwig; Scheinert, Mirko; Popov, Sergey V.; Groh, Andreas; et al.; The hydrostatic control of load-induced height changes above subglacial Lake Vostok; Cambridge University Press; Journal Of Glaciology; 68; 271; 4-2022; 849-8660022-1430CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/journal-of-glaciology/article/hydrostatic-control-of-loadinduced-height-changes-above-subglacial-lake-vostok/D37E371BEC709AA3468D459B52F9C7DDinfo:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2022.2info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:08:32Zoai:ri.conicet.gov.ar:11336/188250instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:08:32.852CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
The hydrostatic control of load-induced height changes above subglacial Lake Vostok |
title |
The hydrostatic control of load-induced height changes above subglacial Lake Vostok |
spellingShingle |
The hydrostatic control of load-induced height changes above subglacial Lake Vostok Richter, Andreas Jorg ICE DYNAMICS LASER ALTIMETRY SUBGLACIAL LAKES |
title_short |
The hydrostatic control of load-induced height changes above subglacial Lake Vostok |
title_full |
The hydrostatic control of load-induced height changes above subglacial Lake Vostok |
title_fullStr |
The hydrostatic control of load-induced height changes above subglacial Lake Vostok |
title_full_unstemmed |
The hydrostatic control of load-induced height changes above subglacial Lake Vostok |
title_sort |
The hydrostatic control of load-induced height changes above subglacial Lake Vostok |
dc.creator.none.fl_str_mv |
Richter, Andreas Jorg Schröder, Ludwig Scheinert, Mirko Popov, Sergey V. Groh, Andreas Willen, Matthias Horwath, Martin Dietrich, Reinhard |
author |
Richter, Andreas Jorg |
author_facet |
Richter, Andreas Jorg Schröder, Ludwig Scheinert, Mirko Popov, Sergey V. Groh, Andreas Willen, Matthias Horwath, Martin Dietrich, Reinhard |
author_role |
author |
author2 |
Schröder, Ludwig Scheinert, Mirko Popov, Sergey V. Groh, Andreas Willen, Matthias Horwath, Martin Dietrich, Reinhard |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
ICE DYNAMICS LASER ALTIMETRY SUBGLACIAL LAKES |
topic |
ICE DYNAMICS LASER ALTIMETRY SUBGLACIAL LAKES |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Lake Vostok, East Antarctica, represents an extensive water surface at the base of the ice sheet. Snow, ice and atmospheric pressure loads applied anywhere within the lake area produce a hydrostatic response, involving deformations of the ice surface, ice-water interface and particle horizons. A modelling scheme is developed to derive height changes of these surfaces for a given load pattern. It is applied to a series of load scenarios, and predictions based on load fields derived from a regional climate model are compared to observational datasets. Our results show that surface height changes due to snow-buildup anomalies are damped over the lake area, reducing the spatial standard deviation by one-third. The response to air pressure variations, in turn, adds surface height variability. Atmospheric pressure loads may produce height changes of up to ±4 cm at daily resolution, but decay rapidly with integration time. The hydrostatic load response has no significant impact neither on ICESat laser campaign biases determined over the lake area nor on vertical particle movements derived from GNSS observations. Fil: Richter, Andreas Jorg. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Cs.astronomicas y Geofisicas. Laboratorio Maggia.; Argentina Fil: Schröder, Ludwig. Technische Universität Dresden; Alemania Fil: Scheinert, Mirko. Technische Universität Dresden; Alemania Fil: Popov, Sergey V.. Polar Marine Geosurvey Expedition; Rusia. Saint Petersburg State University; Rusia Fil: Groh, Andreas. Technische Universität Dresden; Alemania Fil: Willen, Matthias. Technische Universität Dresden; Alemania Fil: Horwath, Martin. Technische Universität Dresden; Alemania Fil: Dietrich, Reinhard. Technische Universität Dresden; Alemania |
description |
Lake Vostok, East Antarctica, represents an extensive water surface at the base of the ice sheet. Snow, ice and atmospheric pressure loads applied anywhere within the lake area produce a hydrostatic response, involving deformations of the ice surface, ice-water interface and particle horizons. A modelling scheme is developed to derive height changes of these surfaces for a given load pattern. It is applied to a series of load scenarios, and predictions based on load fields derived from a regional climate model are compared to observational datasets. Our results show that surface height changes due to snow-buildup anomalies are damped over the lake area, reducing the spatial standard deviation by one-third. The response to air pressure variations, in turn, adds surface height variability. Atmospheric pressure loads may produce height changes of up to ±4 cm at daily resolution, but decay rapidly with integration time. The hydrostatic load response has no significant impact neither on ICESat laser campaign biases determined over the lake area nor on vertical particle movements derived from GNSS observations. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-04 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/188250 Richter, Andreas Jorg; Schröder, Ludwig; Scheinert, Mirko; Popov, Sergey V.; Groh, Andreas; et al.; The hydrostatic control of load-induced height changes above subglacial Lake Vostok; Cambridge University Press; Journal Of Glaciology; 68; 271; 4-2022; 849-866 0022-1430 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/188250 |
identifier_str_mv |
Richter, Andreas Jorg; Schröder, Ludwig; Scheinert, Mirko; Popov, Sergey V.; Groh, Andreas; et al.; The hydrostatic control of load-induced height changes above subglacial Lake Vostok; Cambridge University Press; Journal Of Glaciology; 68; 271; 4-2022; 849-866 0022-1430 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/journal-of-glaciology/article/hydrostatic-control-of-loadinduced-height-changes-above-subglacial-lake-vostok/D37E371BEC709AA3468D459B52F9C7DD info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2022.2 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Cambridge University Press |
publisher.none.fl_str_mv |
Cambridge University Press |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
_version_ |
1842270049085161472 |
score |
13.13397 |