Wall, Marlene; Schmidt, Gertraud; Janjang, Pornpang; Khokiattiwong, Somkiat; Richter, Claudio (2012): Coral reef development in response to large amplitude internal waves and monsoon impact. PANGAEA, https://doi.org/10.1594/PANGAEA.831254, Supplement to: Wall, M et al. (2012): Differential Impact of Monsoon and Large Amplitude Internal Waves on Coral Reef Development in the Andaman Sea. PLoS ONE, 7(11), e50207, https://doi.org/10.1371/journal.pone.0050207
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The Andaman Sea and other macrotidal semi-enclosed tropical seas feature large amplitude internal waves (LAIW). Although LAIW induce strong fluctuations i.e. of temperature, pH, and nutrients, their influence on reef development is so far unknown. A better-known source of disturbance is the monsoon affecting corals due to turbulent mixing and sedimentation. Because in the Andaman Sea both, LAIW and monsoon, act from the same westerly direction their relative contribution to reef development is difficult to discern. Here, we explore the framework development in a number of offshore island locations subjected to differential LAIW- and SW-monsoon impact to address this open question. Cumulative negative temperature anomalies - a proxy for LAIW impact - explained a higher percentage of the variability in coral reef framework height, than sedimentation rates which resulted mainly from the monsoon. Temperature anomalies and sediment grain size provided the best correlation with framework height suggesting that so far neglected subsurface processes (LAIW) play a significant role in shaping coral reefs.
Median Latitude: 8.593200 * Median Longitude: 97.888428 * South-bound Latitude: 7.595530 * West-bound Longitude: 97.635410 * North-bound Latitude: 9.410710 * East-bound Longitude: 98.373100
Date/Time Start: 2009-11-11T00:00:00 * Date/Time End: 2010-12-06T00:00:00
CalMarO - Calcification by marine organisms, PEOPLE-2007-1-1-ITN Marie Curie Action: 215157
BioAcid - German Ministry for Education and Research Project (Bmbf), Grant number 03F0608B, Bioacid 3.2.3, Coral Calcification in marginal reefs
ORCAS - Ocean Reef Coupling in the Andaman Sea - German Research Foundation (DFG), Grant number RI 1074/7-1