中国第10次北极科学考察(2019年)表层水体颗粒物吸收系数分析数据

作为固有光学量IOPs的主要组成部分之一，颗粒物对水体吸收同样具有重要意义。根据物质成分的不同，可将总颗粒物进一步分为浮游植物颗粒（色素颗粒）和非浮游植物颗粒（Non-algal Particles, NAP）。
实际操作中，通过甲醇萃取等方法洗去总颗粒物中的色素部分，从而得到非色素颗粒膜样，两者吸收系数测量结果相减得到色素颗粒吸收值。
本数据为中国第10次北极科学考察（2019年）颗粒物吸收系数数据，对了解北极及邻区海域吸收或转移CO~2~的过程、机制和能力；了解北极特定海区浮游植物的生物地球化学特征、研究其对全球气候变化的贡献和对我国气候和海洋环境影响具有重要意义。
1.测量仪器
仪器名称：双光路分光光度计
仪器型号：Lambda750S
标定方法：中华人民共和国国家计量检定规程
2.测量方法和所获观测资料
使用采水器打表层水测量海水颗粒物吸收系数，共计41个有效数据站点。

As one of the core components of inherent optical properties (IOPs), particulate matter also plays a significant role in the absorption of water bodies. Based on their chemical compositions, total particulate matter can be further divided into phytoplankton particles (pigment particles) and non-algal particles (NAP).
In practical operations, the pigment fraction in total particulate matter is removed via methods such as methanol extraction to obtain non-pigment particulate membrane samples, and the absorption value of pigment particles is calculated by subtracting the measured absorption coefficients of the two samples.
This dataset contains particulate matter absorption coefficient data collected during China's 10th Arctic Scientific Expedition in 2019, which is of great significance for understanding the processes, mechanisms and capacity of CO₂ absorption and transfer in the Arctic and its adjacent seas, comprehending the biogeochemical characteristics of phytoplankton in specific Arctic marine areas, and studying their contributions to global climate change as well as their impacts on China's climate and marine environment.
1. Measuring Instruments
Instrument Name: Dual-beam Spectrophotometer
Instrument Model: Lambda750S
Calibration Method: National Metrology Verification Regulations of the People's Republic of China
2. Measurement Methods and Obtained Observation Data
Surface seawater was collected using a water sampler to measure the absorption coefficients of marine particulate matter, with a total of 41 valid data stations.

搜集汇总

背景与挑战

背景概述

该数据集包含2019年中国第10次北极科学考察中表层水体颗粒物吸收系数的分析数据，共涵盖41个站点，使用双光路分光光度计测量，区分了浮游植物颗粒和非浮游植物颗粒的吸收。数据旨在研究北极海域的CO2吸收过程、浮游植物生物地球化学特征及其对全球气候变化的贡献，属于海洋科学领域的条件共享资源。