The Hawaii Ocean Time-Series Program: JGOFS Component

该提案支持夏威夷海洋时间序列（HOT）计划的JGOFS核心测量组件再延长三年。HOT JGOFS提案包括4个独立但完全整合的提案：核心测量成分（D. Karl， L. Tupas和D. Hebel, co P.I.s），色素和浮游植物成分（R. Bidigare， P.I.s），无机碳(C。Winn， P.I.)和浮游动物（m.l Landry， P.I.）。自1988年10月以来，在北太平洋副热带ALOHA寡营养站（22’45N, 158’000’w）进行了一套全面的海洋测量和现场实验结果。选择岩心测量值作为验证现有C-N - P生物地球化学模型的数据集，并在必要时对其进行改进。在正在研究的各种生态系统过程中，最重要的是：大气-海洋界面的碳通量，初级生产和颗粒输出的速率和控制机制，以及无机养分（N和P）通量的途径和强度。同样重要的是观测到的微生物生物量和生物多样性随时间的变化，以及这些观测到的生态系统变化与更广泛的温带气候强迫（如厄尔尼诺-南方涛动（ENSO））和其他大尺度海洋-大气相互作用的关系。来自HOT程序的紧急数据集是独特的，健壮的和丰富的以前未记录的现象。HOT程序数据库完全可以访问，任何人都可以通过全球互联网系统（ftp）不受限制地使用，最近，通过万维网，只有大约6 - 12个月的处理延迟。HOT研究项目的科学成果为以前采样不足的世界海洋地区的生物地球化学循环提供了前所未有的视角。许多与HOT相关的出版物和报告已经出现，这些出版物和报告是基于广泛的HOT项目相关和独立科学家所获得的研究结果。与此同时，这个海洋研究项目为来自夏威夷和世界各地的本科生和研究生提供了一个独特的教育机会，既可以在海上实地体验，也可以在课堂上使用计算机访问HOT项目环境数据集。拨款将用于在1998年8月至2001年7月期间继续进行这项成功的海洋时间序列核心测量计划，并增加系泊设施以补充这些测量。

This proposal supports the continuation of the JGOFS core measurement component of the Hawaii Ocean Time series (HOT) program for an additional three years. This HOT JGOFS proposal includes 4 separate, but fully integrated proposals: core measurement component (D. Karl, L. Tupas and D. Hebel, co P.I.s), pigment and phytoplankton component (R. Bidigare, P.I.), inorganic carbon (C.' Winn, P.I.) and zooplankton (M. Landry, P.I.). Since Oct 1988, a comprehensive suite of ocean measurements and results of in situ experiments have been obtained at the oligotrophic Station ALOHA (22'45N, 158'00'W) in the subtropical North Pacific Ocean. The core measurements were selected to provide a data set to validate existing C-N P biogeochemical models and, if necessary, to improve them. Foremost in importance among the various ecosystem processes under investigation are: the flux of carbon at the air sea interface, the rates and control mechanisms of primary production and particle export, and the pathways and intensities of inorganic nutrient (N and P) fluxes. Equally important are the observed time dependent changes in microbial biomass and biodiversity, and the relationships of these observed ecosystem changes to the broader extratropical climate forcing such as El Nino Southern Oscillation (ENSO) and other large scale ocean atmosphere interactions. The emergent data set from the HOT program is unique, robust and rich with previously undocumented phenomena. The HOT program data base is fully accessible with unrestricted use by anyone through the worldwide Internet system (ftp) and, more recently, via the world wide web with only an approximately 6 12 month processing delay. The scientific results of the HOT research program have provided an unprecedented view of biogeochemical cycles in a previously undersampled region of the world ocean. Numerous HOT related publications and reports have already appeared based on the research results obtained by a broad spectrum of HOT program associated and independent scientists. At the same time, this ocean research program has provided an unique educational opportunity for undergraduate and graduate students from Hawaii and around the world, both in terms of at sea field experience and in the classroom working with the computer accessible HOT program environmental data sets. Funding will be used to continue this successful ocean time series core measurement program for the period Aug 1998 to July 2001 and supplement these measurements with an additional mooring.