Does SW Monsoon Influence Total Suspended Matter Flux into the Arabian Sea?

2013 ◽  
Vol 289 ◽  
pp. 766-771 ◽  
Author(s):  
Bangalore R. Raghavan ◽  
Onkar S. Chauhan
Keyword(s):  
Suspended Matter ◽  
Arabian Sea ◽  
Total Suspended Matter ◽  
Matter Flux ◽  
Sw Monsoon

scholarly journals Amino acid composition and <i>δ</i><sup>15</sup>N of suspended matter in the Arabian Sea: implications for organic matter sources and degradation

2013 ◽  
Vol 10 (11) ◽  
pp. 7689-7702 ◽  
Author(s):  
B. Gaye ◽  
B. Nagel ◽  
K. Dähnke ◽  
T. Rixen ◽  
N. Lahajnar ◽  
...  
Keyword(s):  
Organic Matter ◽  
Amino Acid ◽  
Water Column ◽  
Residence Time ◽  
Mixed Layer ◽  
Suspended Matter ◽  
Arabian Sea ◽  
Monsoon Season ◽  
Sediment Traps ◽  
Surface Mixed Layer

Abstract. Sedimentation in the ocean is fed by large aggregates produced in the surface mixed layer that sink rapidly through the water column. These particles sampled by sediment traps have often been proposed to interact by disaggregation and scavenging with a pool of fine suspended matter with very slow sinking velocities and thus a long residence time. We investigated the amino acid (AA) composition and stable nitrogen isotopic ratios of suspended matter (SPM) sampled during the late SW monsoon season in the Arabian Sea and compared them to those of sinking particles to understand organic matter degradation/modification during passage through the water column. We found that AA composition of mixed layer suspended matter corresponds more to fresh plankton and their aggregates, whereas AA composition of SPM in the sub-thermocline water column deviated progressively from mixed layer composition. We conclude that suspended matter in deep waters and in the mixed layers of oligotrophic stations is dominated by fine material that has a long residence time and organic matter that is resistant to degradation. SPM in areas of high primary productivity is essentially derived from fresh plankton and thus has a strong imprint of the subsurface nitrate source, whereas SPM at oligotrophic stations and at subthermocline depths appears to exchange amino acids and nitrogen isotopes with the dissolved organic carbon (DOC) pool influencing also the δ15N values.

scholarly journals The SeaSWIR dataset

2018 ◽  
Author(s):  
Els Knaeps ◽  
David Doxaran ◽  
Ana Dogliotti ◽  
Bouchra Nechad ◽  
Kevin Ruddick ◽  
...  
Keyword(s):  
Quality Control ◽  
Suspended Matter ◽  
Short Wave ◽  
Total Suspended Matter ◽  
High Quality ◽  
Detailed Measurement ◽  
La Plata ◽  
Measurement Protocol ◽  
Wide Range ◽  
Quality Measurements

Abstract. The SeaSWIR dataset consists of 137 ASD (Analytical Spectral Devices, Inc.) marine reflectances, 137 Total Suspended Matter (TSM) measurements and 97 turbidity measurements gathered at three turbid estuarine sites (Gironde, La Plata, Scheldt). The dataset is valuable because of the high quality measurements of the marine reflectance in the Short Wave InfraRed I region (SWIR-I: 1000–1200 nm) and SWIR-II (1200–1300 nm) and because of the wide range of TSM concentrations from 48 mg L−1 up to 1400 mg L−1. The ASD measurements were gathered using a detailed measurement protocol and were subjected to a strict quality control. The SeaSWIR marine reflectance is characterized by low reflectance at short wavelengths (

scholarly journals The development of a new optical total suspended matter algorithm for the Chesapeake Bay

2012 ◽  
Vol 119 ◽  
pp. 243-254 ◽  
Author(s):  
Michael. Ondrusek ◽  
Eric. Stengel ◽  
Christopher.S. Kinkade ◽  
Ronald.L. Vogel ◽  
Phillip. Keegstra ◽  
...  
Keyword(s):  
Chesapeake Bay ◽  
Suspended Matter ◽  
Total Suspended Matter
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