Carbon Retention in a Colored Ocean (CARIACO)

有色海洋中的碳保留（CARIACO）

• 批准号: 9216626
• 负责人: Frank Muller-Karger
• 金额: $ 100.12万
• 依托单位: University of South Florida
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-06-01 至 1999-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9216626&HistoricalAwards=false
• 关键词: Carbon; Retention; Colored; Ocean; CARIACO

9216626 MULLER-KARGER This is a study of the relation of near surface biogeochemical processes to the downward flux of particulate materials along a continental margin where down-slope lateral losses into the ocean's interior are minimal. Specifically, low-cost ocean margin time series station in the Cariaco Basin, a depression located on the continental margin of the southern Caribbean Sea, will be inflemeated. Monthly hydrographic casts and bi-weekly sediment flux at 4 depths using automated moore traps will the conducted high resolution satellite data will be collected using an antenna located in Caracas, Benezuela. This program is identified is as CARIACO (CArbon Retention In A Colored Ocean). The goals of the CARIACO program are to: a) quantify oceanographic processes that affect the vertical flux of nutrients, carbon uptake, and carbon deposition, including the interaction between wind speed, sea level (as an indicator of geostrophic current strength), river discharge, sea surface temperature, and irradiance above an anoxic basin; to define variability in biogeochemcial fluxes in an area affected by seasonal upwelling and river discharge; c) quantify the relative importance of primary production versus terrigenous inputs of particulate and dissolved materials in the downward flux and sediments storage; d) determine the seasonal taxonomic composition of plankton in the water column, with emphasis on vertical variations of phytoplankton and foraminifera species; e) develop a two-dimensional numerical model the allows examination of the annual cycle of population responses, vertical biogenic fluxes, and degradation of detritus at depth; and f) examine the relationship between water-column oceanographic processes and sediment fluxes in order to understand the origin of sediment varves and their relationship to past climate change.

9216626 MULLER-KARGER 这是一项关于近地表生物地球化学过程与沿着大陆边缘的颗粒物质向下通量之间关系的研究，其中进入海洋内部的下坡横向损失最小。具体来说，位于加勒比海南部大陆边缘的洼地卡里亚科盆地的低成本海洋边缘时间序列站将受到影响。 使用自动摩尔陷阱进行的每月水道测量和每两周一次 4 个深度的沉积物通量将使用位于比内苏埃拉加拉加斯的天线收集高分辨率卫星数据。该计划被称为 CARIACO（彩色海洋中的碳保留）。 CARIACO 计划的目标是： a) 量化影响营养物垂直通量、碳吸收和碳沉积的海洋过程，包括风速、海平面（作为地转流强度的指标）、河流流量之间的相互作用、海面温度和缺氧盆地上方的辐照度；定义受季节性上升流和河流流量影响的区域中生物地球化学通量的变异性； c) 量化初级生产相对于向下通量和沉积物储存中颗粒和溶解物质的陆源输入的相对重要性； d) 确定水体中浮游生物的季节性分类组成，重点关注浮游植物和有孔虫物种的垂直变化； e) 开发一个二维数值模型，可以检查种群反应的年度周期、垂直生物通量和深层碎屑的降解； f) 研究水柱海洋过程和沉积物通量之间的关系，以了解沉积物的起源及其与过去气候变化的关系。