Eintrag weiter verarbeiten
Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019
Gespeichert in:
| Zeitschriftentitel: | The Cryosphere |
|---|---|
| Personen und Körperschaften: | , , , |
| In: | The Cryosphere, 15, 2021, 4, S. 1845-1862 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Copernicus GmbH
|
| Schlagwörter: |
| author_facet |
Jakob, Livia Gourmelen, Noel Ewart, Martin Plummer, Stephen Jakob, Livia Gourmelen, Noel Ewart, Martin Plummer, Stephen |
|---|---|
| author |
Jakob, Livia Gourmelen, Noel Ewart, Martin Plummer, Stephen |
| spellingShingle |
Jakob, Livia Gourmelen, Noel Ewart, Martin Plummer, Stephen The Cryosphere Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019 Earth-Surface Processes Water Science and Technology |
| author_sort |
jakob, livia |
| spelling |
Jakob, Livia Gourmelen, Noel Ewart, Martin Plummer, Stephen 1994-0424 Copernicus GmbH Earth-Surface Processes Water Science and Technology http://dx.doi.org/10.5194/tc-15-1845-2021 <jats:p>Abstract. Glaciers are currently the largest contributor to sea level rise after ocean thermal expansion, contributing ∼ 30 % to the sea level budget. Global monitoring of these regions remains a challenging task since global estimates rely on a variety of observations and models to achieve the required spatial and temporal coverage, and significant differences remain between current estimates. Here we report the first application of a novel approach to retrieve spatially resolved elevation and mass change from radar altimetry over entire mountain glaciers areas. We apply interferometric swath altimetry to CryoSat-2 data acquired between 2010 and 2019 over High Mountain Asia (HMA) and in the Gulf of Alaska (GoA). In addition, we exploit CryoSat's monthly temporal repeat to reveal seasonal and multiannual variation in rates of glaciers' thinning at unprecedented spatial detail. We find that during this period, HMA and GoA have lost an average of −28.0 ± 3.0 Gt yr−1 (−0.29 ± 0.03 m w.e. yr−1) and −76.3 ± 5.7 Gt yr−1 (−0.89 ± 0.07 m w.e. yr−1), respectively, corresponding to a contribution to sea level rise of 0.078 ± 0.008 mm yr−1 (0.051 ± 0.006 mm yr−1 from exorheic basins) and 0.211 ± 0.016 mm yr−1. The cumulative loss during the 9-year period is equivalent to 4.2 % and 4.3 % of the ice volume, respectively, for HMA and GoA. Glacier thinning is ubiquitous except for in the Karakoram–Kunlun region, which experiences stable or slightly positive mass balance. In the GoA region, the intensity of thinning varies spatially and temporally, with acceleration of mass loss from −0.06 ± 0.33 to −1.1 ± 0.06 m yr−1 from 2013, which correlates with the strength of the Pacific Decadal Oscillation. In HMA ice loss is sustained until 2015–2016, with a slight decrease in mass loss from 2016, with some evidence of mass gain locally from 2016–2017 onwards. </jats:p> Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019 The Cryosphere |
| doi_str_mv |
10.5194/tc-15-1845-2021 |
| facet_avail |
Online Free |
| finc_class_facet |
Geographie Technik Geologie und Paläontologie |
| format |
ElectronicArticle |
| fullrecord |
blob:ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuNTE5NC90Yy0xNS0xODQ1LTIwMjE |
| id |
ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuNTE5NC90Yy0xNS0xODQ1LTIwMjE |
| institution |
DE-D275 DE-Bn3 DE-Brt1 DE-Zwi2 DE-D161 DE-Gla1 DE-Zi4 DE-15 DE-Pl11 DE-Rs1 DE-105 DE-14 DE-Ch1 DE-L229 |
| imprint |
Copernicus GmbH, 2021 |
| imprint_str_mv |
Copernicus GmbH, 2021 |
| issn |
1994-0424 |
| issn_str_mv |
1994-0424 |
| language |
English |
| mega_collection |
Copernicus GmbH (CrossRef) |
| match_str |
jakob2021spatiallyandtemporallyresolvedicelossinhighmountainasiaandthegulfofalaskaobservedbycryosat2swathaltimetrybetween2010and2019 |
| publishDateSort |
2021 |
| publisher |
Copernicus GmbH |
| recordtype |
ai |
| record_format |
ai |
| series |
The Cryosphere |
| source_id |
49 |
| title |
Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019 |
| title_unstemmed |
Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019 |
| title_full |
Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019 |
| title_fullStr |
Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019 |
| title_full_unstemmed |
Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019 |
| title_short |
Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019 |
| title_sort |
spatially and temporally resolved ice loss in high mountain asia and the gulf of alaska observed by cryosat-2 swath altimetry between 2010 and 2019 |
| topic |
Earth-Surface Processes Water Science and Technology |
| url |
http://dx.doi.org/10.5194/tc-15-1845-2021 |
| publishDate |
2021 |
| physical |
1845-1862 |
| description |
<jats:p>Abstract. Glaciers are currently the largest contributor to sea
level rise after ocean thermal expansion, contributing ∼ 30 % to the sea level budget. Global monitoring of these regions remains a
challenging task since global estimates rely on a variety of observations
and models to achieve the required spatial and temporal coverage, and
significant differences remain between current estimates. Here we report the first application of a novel approach to retrieve spatially resolved
elevation and mass change from radar altimetry over entire mountain glaciers areas. We apply interferometric swath altimetry to CryoSat-2 data acquired
between 2010 and 2019 over High Mountain Asia (HMA) and in the Gulf of
Alaska (GoA). In addition, we exploit CryoSat's monthly temporal repeat to
reveal seasonal and multiannual variation in rates of glaciers' thinning at
unprecedented spatial detail. We find that during this period, HMA and GoA
have lost an average of −28.0 ± 3.0 Gt yr−1 (−0.29 ± 0.03 m w.e. yr−1) and −76.3 ± 5.7 Gt yr−1 (−0.89 ± 0.07 m w.e. yr−1), respectively, corresponding to a contribution to sea level rise of 0.078 ± 0.008 mm yr−1 (0.051 ± 0.006 mm yr−1 from exorheic basins) and 0.211 ± 0.016 mm yr−1. The cumulative loss during the 9-year period is equivalent to 4.2 % and 4.3 % of the ice volume, respectively, for HMA and GoA. Glacier thinning is ubiquitous except for in the Karakoram–Kunlun region, which experiences stable or slightly
positive mass balance. In the GoA region, the intensity of thinning varies
spatially and temporally, with acceleration of mass loss from −0.06 ± 0.33 to −1.1 ± 0.06 m yr−1 from 2013, which
correlates with the strength of the Pacific Decadal Oscillation. In HMA ice
loss is sustained until 2015–2016, with a slight decrease in mass loss from
2016, with some evidence of mass gain locally from 2016–2017 onwards.
</jats:p> |
| container_issue |
4 |
| container_start_page |
1845 |
| container_title |
The Cryosphere |
| container_volume |
15 |
| format_de105 |
Article, E-Article |
| format_de14 |
Article, E-Article |
| format_de15 |
Article, E-Article |
| format_de520 |
Article, E-Article |
| format_de540 |
Article, E-Article |
| format_dech1 |
Article, E-Article |
| format_ded117 |
Article, E-Article |
| format_degla1 |
E-Article |
| format_del152 |
Buch |
| format_del189 |
Article, E-Article |
| format_dezi4 |
Article |
| format_dezwi2 |
Article, E-Article |
| format_finc |
Article, E-Article |
| format_nrw |
Article, E-Article |
| _version_ |
1792348160414187525 |
| geogr_code |
not assigned |
| last_indexed |
2024-03-01T18:06:46.527Z |
| geogr_code_person |
not assigned |
| openURL |
url_ver=Z39.88-2004&ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fvufind.svn.sourceforge.net%3Agenerator&rft.title=Spatially+and+temporally+resolved+ice+loss+in+High+Mountain+Asia+and+the+Gulf+of+Alaska+observed+by+CryoSat-2+swath+altimetry+between+2010+and+2019&rft.date=2021-04-14&genre=article&issn=1994-0424&volume=15&issue=4&spage=1845&epage=1862&pages=1845-1862&jtitle=The+Cryosphere&atitle=Spatially+and+temporally+resolved+ice+loss+in+High+Mountain+Asia+and+the+Gulf+of+Alaska+observed+by+CryoSat-2+swath+altimetry+between+2010+and+2019&aulast=Plummer&aufirst=Stephen&rft_id=info%3Adoi%2F10.5194%2Ftc-15-1845-2021&rft.language%5B0%5D=eng |
| SOLR | |
| _version_ | 1792348160414187525 |
| author | Jakob, Livia, Gourmelen, Noel, Ewart, Martin, Plummer, Stephen |
| author_facet | Jakob, Livia, Gourmelen, Noel, Ewart, Martin, Plummer, Stephen, Jakob, Livia, Gourmelen, Noel, Ewart, Martin, Plummer, Stephen |
| author_sort | jakob, livia |
| container_issue | 4 |
| container_start_page | 1845 |
| container_title | The Cryosphere |
| container_volume | 15 |
| description | <jats:p>Abstract. Glaciers are currently the largest contributor to sea level rise after ocean thermal expansion, contributing ∼ 30 % to the sea level budget. Global monitoring of these regions remains a challenging task since global estimates rely on a variety of observations and models to achieve the required spatial and temporal coverage, and significant differences remain between current estimates. Here we report the first application of a novel approach to retrieve spatially resolved elevation and mass change from radar altimetry over entire mountain glaciers areas. We apply interferometric swath altimetry to CryoSat-2 data acquired between 2010 and 2019 over High Mountain Asia (HMA) and in the Gulf of Alaska (GoA). In addition, we exploit CryoSat's monthly temporal repeat to reveal seasonal and multiannual variation in rates of glaciers' thinning at unprecedented spatial detail. We find that during this period, HMA and GoA have lost an average of −28.0 ± 3.0 Gt yr−1 (−0.29 ± 0.03 m w.e. yr−1) and −76.3 ± 5.7 Gt yr−1 (−0.89 ± 0.07 m w.e. yr−1), respectively, corresponding to a contribution to sea level rise of 0.078 ± 0.008 mm yr−1 (0.051 ± 0.006 mm yr−1 from exorheic basins) and 0.211 ± 0.016 mm yr−1. The cumulative loss during the 9-year period is equivalent to 4.2 % and 4.3 % of the ice volume, respectively, for HMA and GoA. Glacier thinning is ubiquitous except for in the Karakoram–Kunlun region, which experiences stable or slightly positive mass balance. In the GoA region, the intensity of thinning varies spatially and temporally, with acceleration of mass loss from −0.06 ± 0.33 to −1.1 ± 0.06 m yr−1 from 2013, which correlates with the strength of the Pacific Decadal Oscillation. In HMA ice loss is sustained until 2015–2016, with a slight decrease in mass loss from 2016, with some evidence of mass gain locally from 2016–2017 onwards. </jats:p> |
| doi_str_mv | 10.5194/tc-15-1845-2021 |
| facet_avail | Online, Free |
| finc_class_facet | Geographie, Technik, Geologie und Paläontologie |
| format | ElectronicArticle |
| format_de105 | Article, E-Article |
| format_de14 | Article, E-Article |
| format_de15 | Article, E-Article |
| format_de520 | Article, E-Article |
| format_de540 | Article, E-Article |
| format_dech1 | Article, E-Article |
| format_ded117 | Article, E-Article |
| format_degla1 | E-Article |
| format_del152 | Buch |
| format_del189 | Article, E-Article |
| format_dezi4 | Article |
| format_dezwi2 | Article, E-Article |
| format_finc | Article, E-Article |
| format_nrw | Article, E-Article |
| geogr_code | not assigned |
| geogr_code_person | not assigned |
| id | ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuNTE5NC90Yy0xNS0xODQ1LTIwMjE |
| imprint | Copernicus GmbH, 2021 |
| imprint_str_mv | Copernicus GmbH, 2021 |
| institution | DE-D275, DE-Bn3, DE-Brt1, DE-Zwi2, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229 |
| issn | 1994-0424 |
| issn_str_mv | 1994-0424 |
| language | English |
| last_indexed | 2024-03-01T18:06:46.527Z |
| match_str | jakob2021spatiallyandtemporallyresolvedicelossinhighmountainasiaandthegulfofalaskaobservedbycryosat2swathaltimetrybetween2010and2019 |
| mega_collection | Copernicus GmbH (CrossRef) |
| physical | 1845-1862 |
| publishDate | 2021 |
| publishDateSort | 2021 |
| publisher | Copernicus GmbH |
| record_format | ai |
| recordtype | ai |
| series | The Cryosphere |
| source_id | 49 |
| spelling | Jakob, Livia Gourmelen, Noel Ewart, Martin Plummer, Stephen 1994-0424 Copernicus GmbH Earth-Surface Processes Water Science and Technology http://dx.doi.org/10.5194/tc-15-1845-2021 <jats:p>Abstract. Glaciers are currently the largest contributor to sea level rise after ocean thermal expansion, contributing ∼ 30 % to the sea level budget. Global monitoring of these regions remains a challenging task since global estimates rely on a variety of observations and models to achieve the required spatial and temporal coverage, and significant differences remain between current estimates. Here we report the first application of a novel approach to retrieve spatially resolved elevation and mass change from radar altimetry over entire mountain glaciers areas. We apply interferometric swath altimetry to CryoSat-2 data acquired between 2010 and 2019 over High Mountain Asia (HMA) and in the Gulf of Alaska (GoA). In addition, we exploit CryoSat's monthly temporal repeat to reveal seasonal and multiannual variation in rates of glaciers' thinning at unprecedented spatial detail. We find that during this period, HMA and GoA have lost an average of −28.0 ± 3.0 Gt yr−1 (−0.29 ± 0.03 m w.e. yr−1) and −76.3 ± 5.7 Gt yr−1 (−0.89 ± 0.07 m w.e. yr−1), respectively, corresponding to a contribution to sea level rise of 0.078 ± 0.008 mm yr−1 (0.051 ± 0.006 mm yr−1 from exorheic basins) and 0.211 ± 0.016 mm yr−1. The cumulative loss during the 9-year period is equivalent to 4.2 % and 4.3 % of the ice volume, respectively, for HMA and GoA. Glacier thinning is ubiquitous except for in the Karakoram–Kunlun region, which experiences stable or slightly positive mass balance. In the GoA region, the intensity of thinning varies spatially and temporally, with acceleration of mass loss from −0.06 ± 0.33 to −1.1 ± 0.06 m yr−1 from 2013, which correlates with the strength of the Pacific Decadal Oscillation. In HMA ice loss is sustained until 2015–2016, with a slight decrease in mass loss from 2016, with some evidence of mass gain locally from 2016–2017 onwards. </jats:p> Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019 The Cryosphere |
| spellingShingle | Jakob, Livia, Gourmelen, Noel, Ewart, Martin, Plummer, Stephen, The Cryosphere, Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019, Earth-Surface Processes, Water Science and Technology |
| title | Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019 |
| title_full | Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019 |
| title_fullStr | Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019 |
| title_full_unstemmed | Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019 |
| title_short | Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019 |
| title_sort | spatially and temporally resolved ice loss in high mountain asia and the gulf of alaska observed by cryosat-2 swath altimetry between 2010 and 2019 |
| title_unstemmed | Spatially and temporally resolved ice loss in High Mountain Asia and the Gulf of Alaska observed by CryoSat-2 swath altimetry between 2010 and 2019 |
| topic | Earth-Surface Processes, Water Science and Technology |
| url | http://dx.doi.org/10.5194/tc-15-1845-2021 |