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Two+ decades (2000-2023) of pan Arctic meltpond fraction data

Neckel, Niklas and Rösel, Anja and Kaleschke, Lars and Birnbaum, Gerit (2023) Two+ decades (2000-2023) of pan Arctic meltpond fraction data. International Symposium on Sea Ice across Spatial and Temporal Scales, 2023-06-04 - 2023-06-09, Bremerhaven, Deutschland.

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Melt ponds are influencing the Arctic energy budget as they strongly reduce the surface albedo of sea ice. It is therefore highly important to monitor their temporal and spatial evolution. Here we build on the work of Rösel and Kaleschke (2012) to extend their time series of Moderate Resolution Image Spectroradiometer (MODIS) melt pond estimates to the present. To do so we make use of a spectral unmixing algorithm implemented via a neural network to reduce computational costs. The results will be compared to classification results of helicopter borne camera data acquired during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition. Furthermore, we will apply classification results from the Modular Aerial Camera System (MACS) newly employed on AWI's research aircrafts to validate the MODIS results on a larger scale. The derived time series of 23 years meltpond data will be carefully analyzed for any trends, both in the temporal and spatial domain and might be of interest to better parametrize sea ice models.

Item URL in elib:https://elib.dlr.de/195243/
Document Type:Conference or Workshop Item (Speech)
Title:Two+ decades (2000-2023) of pan Arctic meltpond fraction data
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Neckel, NiklasUNSPECIFIEDhttps://orcid.org/0000-0003-4300-5488UNSPECIFIED
Rösel, AnjaUNSPECIFIEDhttps://orcid.org/0000-0002-1802-1219150732699
Kaleschke, LarsAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germanyhttps://orcid.org/0000-0001-7086-3299UNSPECIFIED
Birnbaum, GeritAlfred Wegener Institute (AWI), Bremerhaven, GermanyUNSPECIFIEDUNSPECIFIED
Date:June 2023
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Melt Pond, Arctic, sea ice, remote Sensing, Modis, Sentinel-2, Neural Network
Event Title:International Symposium on Sea Ice across Spatial and Temporal Scales
Event Location:Bremerhaven, Deutschland
Event Type:international Conference
Event Start Date:4 June 2023
Event End Date:9 June 2023
Organizer:Int. Glaciological Society
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Artificial Intelligence
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > EO Data Science
Deposited By: Rösel, Dr. Anja
Deposited On:26 May 2023 11:36
Last Modified:24 Apr 2024 20:55

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