Print Email Facebook Twitter Statistical Characterization of the Observed Cold Wake Induced by North Atlantic Hurricanes Title Statistical Characterization of the Observed Cold Wake Induced by North Atlantic Hurricanes Author Haakman, Koen (Student TU Delft) Sayol España, J.M. (TU Delft Environmental Fluid Mechanics) van der Boog, C.G. (TU Delft Environmental Fluid Mechanics) Katsman, C.A. (TU Delft Environmental Fluid Mechanics) Date 2019 Abstract This work quantifies the magnitude, spatial structure, and temporal evolution of the cold wake left by North Atlantic hurricanes. To this end we composited the sea surface temperature anomalies (SSTA) induced by hurricane observations from 2002 to 2018 derived from the international best track archive for climate stewardship (IBTrACS). Cold wake characteristics were distinguished by a set of hurricane and oceanic properties: Hurricane translation speed and intensity, and the characteristics of the upper ocean stratification represented by two barrier layer metrics: Barrier layer thickness (BLT) and barrier layer potential energy (BLPE). The contribution of the above properties to the amplitude of the cold wake was analyzed individually and in combination. The mean magnitude of the hurricane-induced cooling was of 1.7 °C when all hurricanes without any distinction were considered, and the largest cooling was found for slow-moving, strong hurricanes passing over thinner barrier layers, with a cooling above 3.5 °C with respect to pre-storm sea surface temperature (SST) conditions. On average the cold wake needed about 60 days to disappear and experienced a strong decay in the first 20 days, when the magnitude of the cold wake had decreased by 80%. Differences between the cold wakes yielded by mostly infrared and merged infrared and microwave remote sensed SST data were also evaluated, with an overall relative underestimation of the hurricane-induced cooling of about 0.4 °C for infrared-mostly data. Subject Atlantic OceanBarrier layerBarrier layer potential energyCold wakeHurricaneSea surface temperature (SST)Tropical cyclone To reference this document use: http://resolver.tudelft.nl/uuid:2f4ef044-62f6-47be-8f0e-c4289b9e8b34 DOI https://doi.org/10.3390/rs11202368 ISSN 2072-4292 Source Remote Sensing, 11 (20) Part of collection Institutional Repository Document type journal article Rights © 2019 Koen Haakman, J.M. Sayol España, C.G. van der Boog, C.A. Katsman Files PDF remotesensing_11_02368.pdf 31.74 MB Close viewer /islandora/object/uuid:2f4ef044-62f6-47be-8f0e-c4289b9e8b34/datastream/OBJ/view