Measurement biases in temperature profiles from marine mammal data loggers: A global analysis ...

<!--!introduction!--> The data loggers attached to marine mammals represent an instrumentation type which provided a significant amount of temperature profiles for the moderate and polar regions since the 2000s. In the World Ocean Database WOD18 marine mammal data contribute ~60% of temperatur...

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Bibliographic Details
Main Authors: Gouretski, Viktor, Cheng, Lijing, Roquet, Fabien
Format: Conference Object
Language:unknown
Published: GFZ German Research Centre for Geosciences 2023
Subjects:
Online Access:https://dx.doi.org/10.57757/iugg23-2992
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018917
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Summary:<!--!introduction!--> The data loggers attached to marine mammals represent an instrumentation type which provided a significant amount of temperature profiles for the moderate and polar regions since the 2000s. In the World Ocean Database WOD18 marine mammal data contribute ~60% of temperature profiles south of 50 o S for 2005 – 2018 and ~40% of profiles north of 40 o N being a significant data source for the estimation of the global ocean warming along with the data from ship-based CTDs and Argo floats. Use of the marine mammal data for the ocean heat content estimation requires the assessment of possible instrumental biases. For the first time we assess temperature biases in marine mammal data by comparing these data with temporarily and spatially collocated reference temperature profiles from Argo floats and ship-based CTDs. For the SRDL recorders implemented mostly in the Southern Ocean our estimates indicate a prevailing time- and sensor type dependent thermal negative temperature bias within the ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ...