2020
DOI: 10.3390/rs12061033
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Estimating Meltwater Drainage Onset Timing and Duration of Landfast Ice in the Canadian Arctic Archipelago Using AMSR-E Passive Microwave Data

Abstract: Meltwater drainage onset (DO) timing and drainage duration (DD) related to snowmelt-water redistribution are both important for understanding not only the Arctic energy and heat budgets but also the salt/heat balance of the mixed layer in the ocean and sea-ice ecosystem. We present DO and DD as determined from the time series of Advanced Microwave Scanning Radiometer-Earth observing system (AMSR-E) melt pond fraction (MPF) estimates in an area with Canadian landfast ice. To address the lack of evaluation on a … Show more

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Cited by 2 publications
(3 citation statements)
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“…These results suggest that the GR(10/89)based MPF retrievals are available from AMSR-E/2 at a product quality most similar to the original GR(6/89)-based MPF retrieval. The original GR(6/89)-based MPF retrieval is valid for late melt season summer conditions, when bare ice and melt ponds are prevalent [3] and available at a product quality similar to the MPF retrieved from optical remote sensing data when broadband albedo is around 0.5-0.7 [4]. It may, however, lead to an increase in pseudo-MPF estimates due to the decrease in H-pol T B at 6 GHz that occurs when dry snow starts to melt [4].…”
Section: Resultsmentioning
confidence: 99%
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“…These results suggest that the GR(10/89)based MPF retrievals are available from AMSR-E/2 at a product quality most similar to the original GR(6/89)-based MPF retrieval. The original GR(6/89)-based MPF retrieval is valid for late melt season summer conditions, when bare ice and melt ponds are prevalent [3] and available at a product quality similar to the MPF retrieved from optical remote sensing data when broadband albedo is around 0.5-0.7 [4]. It may, however, lead to an increase in pseudo-MPF estimates due to the decrease in H-pol T B at 6 GHz that occurs when dry snow starts to melt [4].…”
Section: Resultsmentioning
confidence: 99%
“…The original GR(6/89)-based MPF retrieval is valid for late melt season summer conditions, when bare ice and melt ponds are prevalent [3] and available at a product quality similar to the MPF retrieved from optical remote sensing data when broadband albedo is around 0.5-0.7 [4]. It may, however, lead to an increase in pseudo-MPF estimates due to the decrease in H-pol T B at 6 GHz that occurs when dry snow starts to melt [4]. Here we consider the period between MO and when melt ponds form on the ice (pond onset, PO) as a possible error since the snow is melting but there are no ponds yet.…”
Section: Resultsmentioning
confidence: 99%
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