Raghu
Murtugudde, Univ of Maryland, ragu@essic.umd.edu
(Presenting)
Xiujun
Wang, Univ of Maryland, wwang@essic.umd.edu
The recharge-discharge mechanism is well-understood for the El Nino-Southern Oscillation (ENSO) mechanism where the tropical warm waters build up in the deep tropics during the recharge phase from the termination of one warm ENSO event to the next warm ENSO event. The discharge process during the ENSO event involves the Sverdrup circulation with reduced upwelling and a consequent reduced geostrophic convergence into the deep tropics. This provides a framework for quantifying the biogeochemical response to the recharge-discharge processes at interannual to decadal time-scales. The impact of the Indonesian throughflow on this recharge-disharge process has not been studied so far. This investigation analyzes forced OGCM-ecosystem simulation to demonstrate that the biogeochemical time-scales in response to the physical processes associated with interannual and decadal variabilities.
NASA Carbon Cycle & Ecosystems Active Awards Represented by this Poster: