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

Liquid water stored on the surface of ice sheets and glaciers impactssurface mass balance, ice dynamics, and heat transport. Multispectral remotesensing can be used to detect supraglacial lakes and estimate their depthand area. In this study, we use in situ spectral and bathymetric data toassess lake depth retrieval using the recently launched Landsat 8Operational Land Imager (OLI). We also extend our analysis to othermultispectral sensors to evaluate their performance with similar methods.Digital elevation models derived from WorldView stereo imagery (pre-lakefilling and post-drainage) are used to validate spectrally derived depths,combined with a lake edge determination from imagery. The optimalsupraglacial lake depth retrieval is a physically based single-band modelapplied to two OLI bands independently (red and panchromatic) that are thenaveraged together. When OLI- and WorldView-derived depths are differenced,they yield a mean and standard deviation of 0.0 ± 1.6 m. This methodis then applied to OLI data for the Sermeq Kujalleq (Jakobshavn Isbræ)region of Greenland to study the spatial and intra-seasonal variability ofsupraglacial lakes during summer 2014. We also give coefficients forestimating supraglacial lake depth using a similar method with othermultispectral sensors

Estimating supraglacial lake depth in West Greenland using Landsat 8 and comparison with other multispectral methods