FN Archimer Export Format
PT J
TI Surface cooling caused by rare but intense near-inertial wave induced mixing in the tropical Atlantic
BT 
AF HUMMELS, Rebecca
   DENGLER, Marcus
   RATH, Willi
   FOLTZ, Gregory R.
   SCHUTTE, Florian
   FISCHER, Tim
   BRANDT, Peter
AS 1:1;2:1;3:1;4:2;5:1;6:1;7:1,3;
FF 1:;2:;3:;4:;5:;6:;7:;
C1 GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
   NOAA/AOML, Miami, FL, USA
   Kiel University, Kiel, Germany
C2 IFM GEOMAR, GERMANY
   NOAA, USA
   UNIV KIEL, GERMANY
IN DOAJ
IF 14.919
TC 9
UR https://archimer.ifremer.fr/doc/00882/99401/109425.pdf
   https://archimer.ifremer.fr/doc/00882/99401/109426.pdf
   https://archimer.ifremer.fr/doc/00882/99401/109427.pdf
LA English
DT Article
CR PIRATA
DE ;Atmospheric science;Biogeochemistry;Climate sciences;Ocean sciences
AB The direct response of the tropical mixed layer to near-inertial waves (NIWs) has only rarely been observed. Here, we present upper-ocean turbulence data that provide evidence for a strongly elevated vertical diffusive heat flux across the base of the mixed layer in the presence of a NIW, thereby cooling the mixed layer at a rate of 244Wm(-2) over the 20h of continuous measurements. We investigate the seasonal cycle of strong NIW events and find that despite their local intermittent nature, they occur preferentially during boreal summer, presumably associated with the passage of atmospheric African Easterly Waves. We illustrate the impact of these rare but intense NIW induced mixing events on the mixed layer heat balance, highlight their contribution to the seasonal evolution of sea surface temperature, and discuss their potential impact on biological productivity in the tropical North Atlantic. How the tropical mixed layer of the ocean reacts to near-inertial waves has rarely been observed directly. Here, the authors present new data that shows strongly elevated vertical diffusive heat flux in the presence of near-inertial waves, causing a cooling of the mixed layer that is particularly strong in summer. 
PY 2020
PD JUN
SO Nature Communications
SN 2041-1723
PU Nature Publishing Group
VL 11
IS 1
UT 000560366500004
DI 10.1038/s41467-020-17601-x
ID 99401
ER

EF