1 / 4

Indonesian Throughflow Makassar Strait, main pacific inflow channel

strom
Télécharger la présentation

Indonesian Throughflow Makassar Strait, main pacific inflow channel

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ocean time series at specific sites provide information of the changing nature of the ocean, which is of value to ocean/climate/marine ecosystems research, industry, and government [the public] communities. Ocean Sites, with other observational groups, can help select key ‘specific’ areas, over see quality, disseminate the data in a uniform format to the user communities; and evaluate the array. Here I advocate a subset of specific areas that serve as portals between oceans and gateways for surface waters injection into the deep ocean, as part of the global ocean overturning circulation. x x X are time series sites that Arnold Gordon & Bruce Huber [Lamont-Doherty] operate, with NOAA/OCO funding The X are other sites Portal and Gateway Sites (that are or should be added to the array); Solid lines are Choke Sections for Antarctic Circumpolar Current (ACC) time series. These are a subset of many sites included in the OceanObs09 reports* x Indonesian Throughflow Makassar Strait, main pacific inflow channel x X x Agulhas Leakage SAMOC or x x Weddell Sea Bottom Water Ross Sea Bottom Water *See: plenary and community white papers of OceanObs09: http://www.oceanobs09.net/

  2. Indonesian Throughflow (ITF): Inflow ~ 14 Sv; outflow ~ 15 Sv, 1 Sv imbalance over 3 years [noise level] Long time series potential NOAA/OCO Mak ITF >1250 m overflow 200-2000 m Karimata ~1 Sv ? Australian Integrated Marine Observing System [IMOS] Indonesian Through Flow Moorings 15 Long time series potential The italics numbers in black represent transport values based on pre-INSTANT data. The red numbers are the 2004-2006 3-year mean transports measured by INSTANT. In Lifamatola Passage the green number is the INSTANT overflow transport >1250 m, representing the overflow into the deep Seram and Banda Sea

  3. Something changed in 2007, peaked in 2008/09, maybe decreasing in 2010* Shallower stronger, warmer Makassar throughflow thermocline max thruflow 2004 1997 2011 * Gordon, Huber, Metzger, Susanto, Hurlburt, Adi “South China Sea Throughflow Impact on the Indonesian Throughflow” WCRP Denver October 2011

  4. 500 m above bottom Weddell Sea Bottom Water Time Series x sea floor Temperature, benthic 500 m Salinity, benthic 500 m Bottom speed Maintenance coordinated with UK BAS Seasonal cycle High freq masks low freq? Monthly bottom temperature Gordon et al, 2010, Nature GeoSci McKee et al 2011, JGR-Ocean Meridith et al, 2011, GRL warm Interannual variability of Weddell Sea Bottom Water correlates to SAM and ENSO; no 10-year trend apparent. cold 2006 1999 Data set now extends to March 2011

More Related