• A personal note on IGBP and the social sciences


    Humans are an integral component of the Earth system as conceptualised by IGBP. João Morais recalls key milestones in IGBP’s engagement with the social sciences and offers some words of advice for Future Earth.
  • IGBP and Earth observation:
    a co-evolution


    The iconic images of Earth beamed back by the earliest spacecraft helped to galvanise interest in our planet’s environment. The subsequent evolution and development of satellites for Earth observation has been intricately linked with that of IGBP and other global-change research programmes, write Jack Kaye and Cat Downy .

The 1994-1996 Arabian Sea Expedition: Oceanic Response to Monsoonal Forcing, Part 2

Deep Sea Research II (1999)
Smith S L (ed)
Vol 46; Issue 8-9
Abstract

This issue (along with further issues of the same title; see Part 1) represents the research conducted by the U.S. portion of the JGOFS Arabian Sea Expedition during 1994-1996. Its general aims were to understand the relationships between biogeochemical cycling in the Arabian Sea and climate change. More specifically this U.S. portion of the expedition, the first for many years, was an integrated, interdisciplinary investigation of the response of the northwestern Indian Ocean to monsoonal forcing, with particular emphasis on the biogeochemical cycling of carbon. At the time the expedition was organized first order issues such as whether or not the Arabian Sea was a sink or a source for atmospheric carbon dioxide were still unclear. What has been shown is that the principal unique feature of the Arabian Sea is the regular oscillation in monsoonal atmospheric conditions, which drive near surface currents, affect mixed-layer development, and influence nutrient supply in a region experiencing relatively constant levels of illumination. The extremes in atmospheric forcing over the Arabian Sea lead to great seasonal variability in the flux of carbon to the seabed and in many aspects of the food web and biogeochemistry of the region. This study therefore complements the research already undertaken on the Arabian Sea in the 1990's by the Netherlands (Deep-Sea Research Part II, Vol. 44, No. 6-7, 1997), Germany, India, Pakistan and the UK.

JGOFS
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