Evidence map›Paper›PMID 39895944›Full record

ArticleJournal of hydrology. Regional studies2025

Leveraging airborne imaging spectroscopy and multispectral satellite imagery to map glacial sediment plumes in Kachemak Bay, Alaska.

L Hartl, C Schmitt, M Stuefer, J Jenckes, B Page, C Crawford, G Schmidt, R Yang, R Hock

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Article in Journal of hydrology. Regional studies, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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0 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

L HartlAlaska Climate Research Center & HyLab, University of Alaska Fairbanks, Fairbanks, USA.
C SchmittAlaska Climate Research Center & HyLab, University of Alaska Fairbanks, Fairbanks, USA.
M StueferAlaska Climate Research Center & HyLab, University of Alaska Fairbanks, Fairbanks, USA.
J JenckesDepartment of Chemistry, University of Alaska Anchorage, Anchorage, USA.
B PageEarth Space Technology Services, contractor to the U.S. Geological Survey Earth Resources Observation and Science Center, Sioux Falls, USA.
C CrawfordU.S. Geological Survey, Earth Resources Observation and Science Center, Sioux Falls, USA.
G SchmidtKBR Inc., contractor to the U.S. Geological Survey Earth Resources Observation and Science Center, Sioux Falls, USA.
R YangDepartment of Geosciences, University of Oslo, Oslo, Norway.
R HockDepartment of Geosciences, University of Oslo, Oslo, Norway.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Study Region Kachemak Bay is a fjord-type estuary in the northern Gulf of Alaska. Water quality and habitat characteristics are strongly influenced by freshwater and sediment input from multiple glacierized catchments. Study Focus We present a new method combining imaging spectroscopy from an airborne survey with Landsat and Sentinel-2 imagery to map water surface turbidity originating from glacial runoff based on spectral abundance. We compare the spectral characteristics of turbid glacial water to clear water and generate a high resolution reference map of glacial turbidity in Kachemak Bay. This informs the subsequent analysis of a homogenized, Rayleigh corrected time series of Landsat and Sentinel-2 images and seasonal patterns of turbidity. New Hydrological Insights for the Region Our results provide the most comprehensive data set on water surface turbidity in Kachemak Bay to date and improve understanding of spatial and seasonal variability of glacial turbidity in a data sparse region. July and August have the largest plumes with median sizes around 150 km

Indexed as

Glacier runoffGulf of AlaskaImaging spectroscopySediment plumes

Identifiers

PMID39895944
PMCPMC11754946

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