English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

. Glaciers are currently the largest contributor to sealevel rise after ocean thermal expansion, contributing ∼  30 % to the sea level budget. Global monitoring of these regions remains achallenging task since global estimates rely on a variety of observationsand models to achieve the required spatial and temporal coverage, andsignificant differences remain between current estimates. Here we report the first application of a novel approach to retrieve spatially resolvedelevation and mass change from radar altimetry over entire mountain glaciers areas. We apply interferometric swath altimetry to CryoSat-2 data acquiredbetween 2010 and 2019 over High Mountain Asia (HMA) and in the Gulf ofAlaska (GoA). In addition, we exploit CryoSat's monthly temporal repeat toreveal seasonal and multiannual variation in rates of glaciers' thinning atunprecedented spatial detail. We find that during this period, HMA and GoAhave 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 slightlypositive mass balance. In the GoA region, the intensity of thinning variesspatially and temporally, with acceleration of mass loss from −0.06 ±  0.33 to −1.1 ±  0.06 m yr −1 from 2013, whichcorrelates with the strength of the Pacific Decadal Oscillation. In HMA iceloss is sustained until 2015–2016, with a slight decrease in mass loss from2016, with some evidence of mass gain locally from 2016–2017 onwards.

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