The preALPACA (Alaskan Layered Pollution And Chemical Analysis) 2019 winter campaign took place in Fairbanks, Alaska, in November–December 2019. One objective of the campaign was to study the lifecycle of surfacebased temperature inversions and the associated surface energy budget changes. Several instruments, including a 4component radiometer and sonic anemometer were deployed in the open, snowcovered University of Alaska Fairbanks (UAF) Campus Agricultural Field. A local flow from a connecting valley occurs at this site. This flow is characterized by locally elevated wind speeds (greater than 3 m s
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The oceanic bottom mixed layer (BML) is a well mixed, weakly stratified, turbulent boundary layer. Adjacent to the seabed, the BML is of intrinsic importance for studying ocean mixing, energy dissipation, particle cycling and sedimentwater interactions. While deepseabed mining of polymetallic nodules is anticipated to commence in the ClarionClipperton Zone (CCZ) of the northeastern tropical Pacific Ocean, knowledge gaps regarding the form of the BML and its potentially key influence on the dispersal of sediment plumes generated by deepseabed mining activities are yet to be addressed. Here, we report recent field observations from the German mining licence area in the CCZ that characterise the structure and variability of the BML locally. Quasiuniform profiles of potential temperature extending from the seafloor reveal the presence of a spatially and temporally variable BML with an average local thickness of approximately 250 m. Deep horizontal currents in the region have a mean speed of 3.5 cm s
 Award ID(s):
 2139277
 NSFPAR ID:
 10488941
 Publisher / Repository:
 Environmental Fluid Mechanics
 Date Published:
 Journal Name:
 Environmental Fluid Mechanics
 Volume:
 23
 Issue:
 3
 ISSN:
 15677419
 Page Range / eLocation ID:
 579 to 602
 Format(s):
 Medium: X
 Sponsoring Org:
 National Science Foundation
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Abstract Thin film evaporation is a widelyused thermal management solution for micro/nanodevices with high energy densities. Local measurements of the evaporation rate at a liquidvapor interface, however, are limited. We present a continuous profile of the evaporation heat transfer coefficient (
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