This new model integrations are executed into Geophysical Water Personality Lab (GFDL) Atmospheric Design type 2
This new model integrations are executed into Geophysical Water https://hookupfornight.com/women-seeking-women/ Personality Lab (GFDL) Atmospheric Design type 2
1) Design works utilized
step one (Delworth mais aussi al. 2006) offering a restricted-frequency dynamical key (Lin 2004) which have a horizontal solution of around dos° latitude and you can twenty four straight membership. The fresh atmospheric model was paired to help you good slab sea that have spatially consistent breadth. Four dress participants having given water depths away from 2.4, six, twelve, 24, and you can 50 yards was analyzed within research. The latest design are pressed because of the seasonally differing insolation that have zero eccentricity and you can ° obliquity, that will be manage to own twenty years, sufficient to gather to the a reliable climatology. New design climatology is taken from the very last 5 years out of brand new integrations.
2) Abilities
The seasonal migration of the ITCZ off the equator has a larger amplitude for shallower ocean depths (Fig. 8) and PCent reaches as far as 21° in the 2.4-m slab depth run as compared to 3° in the 50-m slab depth run. This behavior is expected because the adjustment time scale of a 50-m-deep ocean to solar heating is on the order of one year (Donohoe 2011) as compared to weeks for 2.4-m-deep ocean. Thus, the SSTs barely adjust to the seasonally varying insolation in the 50-m run while the maximum SST moves seasonally with the insolation in the 2.4-m run.
(top) Regular list of rain centroid and you may atmospheric temperatures transport along side equator regarding slab water aquaplanet simulations with each simulator (sea breadth) offered by a unique colour. New regular diversity is twice the fresh amplitude of yearly harmonic of every variable and mountain of your own line is the regression coefficient of your own month-to-month data. The brand new black colored asterisks would be the monthly observations and the good black colored range is the regular listing of brand new observations. (bottom) Due to the fact at most useful, but for rain centroid and you may exotic SST gradient.
(top) Regular set of rain centroid and you may atmospheric temperatures transportation along side equator throughout the slab water aquaplanet simulations with every simulator (ocean breadth) given by a different color. The latest regular diversity try twice the latest amplitude of annual harmonic each and every variable as well as the slope of your line 's the regression coefficient of monthly study. The latest black asterisks will be month-to-month findings and the strong black colored line 's the seasonal list of brand new findings. (bottom) Since on greatest, but also for rain centroid and exotic SST gradient.
(top) Seasonal set of precipitation centroid and you may atmospheric temperatures transport across the equator throughout the slab sea aquaplanet simulations with each simulation (ocean depth) provided by a separate colour. Brand new regular diversity are twice the fresh new amplitude of your own annual harmonic of any variable additionally the mountain of your line is the regression coefficient of one's monthly data. The fresh new black colored asterisks is the month-to-month observations as well as the solid black range 's the regular list of the newest observations. (bottom) As within greatest, but for rain centroid and you can tropical SST gradient.
The seasonal amplitude of AHTEQ also decreases with increasing ocean depth, from 11.6 PW in the 2.4-m run to 0.5 PW in the 50-m run. In the shallow ocean run, the SSTs respond rapidly to the seasonally varying insolation, heating up over the summer hemisphere and subsequently fluxing energy upward (via turbulent and longwave fluxes) to the adjacent atmosphere to drive seasonal variations in AHTEQ; in the 2.4-m run ?SHF? is nearly in phase with the insolation (11-day lag) and has a seasonal amplitude of 11.6 PW. In contrast, the solar heating of the ocean makes a minimal impact on ocean temperatures in the deep ocean runs due to the large heat capacity of the ocean. In fact, SWABS is the only source of seasonal atmospheric heating in the 50-m run and the atmosphere loses energy to the ocean during the warm season; in the 50-m run ?SHF? is nearly antiphased with the insolation (192-day lag) and has a seasonal amplitude of 3.7 PW.
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