Great Barrier Reef Marine Monitoring Program for Inshore Water Quality - Chlorophyll Fluorescence and Turbidity Time-series Data

This metadata record describes chlorophyll fluorescence and turbidity time-series data collected through in situ monitoring by the Great Barrier Reef Marine Monitoring Program for Inshore Water Quality (MMP WQ). A full description of the MMP WQ and its associated datasets can be found in the parent metadata record linked above.Continuous in situ chlorophyll fluorescence and turbidity were measured using WET Labs ECO FLNTUSB Combination Fluorometer and Turbidity Sensors. The MMP WQ currently has instruments deployed at 19 sites summarised by Natural Resource Management (NRM) region below. The date ranges of instrument deployments are also shown; some sites were discontinued in 2014 but data are still available for download. Cape York NRM: Annan-Endeavour focus region: Forrester Reef (2020-present), Dawson Reef (2020-present)Wet Tropics NRM: Barron-Daintree focus region: Snapper Island North (2007-2014) Russell-Mulgrave focus region: Fitzroy Island West (2007-present), High Island West (2007-present), Russell-Mulgrave River mooring (2015-present), Frankland West (2007-present) Tully focus region: Dunk Island North (2007-present), Tully River mooring (2015-present)Burdekin NRM: Pelorus (2007-present), Pandora (2007-present), Geoffrey Bay (2007-present), Burdekin River mooring (2015-present)Mackay Whitsunday NRM: Double Cone Island (2007-present), Daydream Island (2007-2014), Pine Island (2007-present), Seaforth Island (2015-present), Repulse Island dive mooring (2015-2021), O'Connell River mooring (2021-present)Fitzroy NRM (monitored 2005-2014 under MMP WQ, 2020-present under Fitzroy Basin program): Pelican Island (2007-2015), Humpy Island (2007-2015, 2021-present), Barren Island (2007-2015, 2021-present), Fitzroy River mouth (2021-present).Instruments are deployed for approximately 4 months at a time at 5 m below the water's surface. They collect one sample every 10 minutes, where each data point is calculated as the mean of 50 instantaneous burst readings. Pre- and post-deployment checks of each instrument include measurements of the maximum fluorescence response and the dark count (instrument response with no external fluorescence, essentially the ‘zero’ point). Factory servicing and calibration checks are performed at the WET Labs facility in the USA after 12-18 months of in-water deployment time. After retrieval, the instruments are cleaned and data downloaded and converted from raw instrumental records into measurement units (µg L-1 for chlorophyll fluorescence and NTU for turbidity) according to the standard procedures of the manufacturer. Deployment information and all raw and converted instrumental records are stored in an Oracle-based data management system developed by AIMS. Detailed procedures for data handling can be found the MMP WQ's QA/QC Reports (see link below in Related Information).Instrument data are validated against concurrently-collected water samples. Water samples for analyses of chlorophyll a and total suspended solids are collected three times per year to calibrate logger fluorescence and turbidity to in situ conditions. Diver-operated Niskin bottles are used to sample close to the moored loggers and samples are preserved and analysed in the same manner as ship-based water samples (see link below in Related Information).Instruments in the Cape York region are deployed at 3 m below the surface and have different processing and servicing procedures than other regions. These procedures are detailed in the files containing instrument data, linked below.Instrument data can be downloaded in hourly or daily averaged formats (see links below in Data Downloads) from 2005-2022. Instrument data from 2023 onwards (all sites except Cape York) are now available on the Australian Ocean Data Network (AODN, see link below) in netcdf file format.

本元数据记录描述了由大堡礁近岸水质海洋监测计划（Great Barrier Reef Marine Monitoring Program for Inshore Water Quality，简称MMP WQ）通过原位监测（in situ monitoring）采集的叶绿素荧光与浊度时序数据。MMP WQ及其关联数据集的完整说明可参见上文链接的上级元数据记录。
本数据集采用WET Labs ECO FLNTUSB组合式荧光浊度传感器，对原位叶绿素荧光与浊度进行连续监测。MMP WQ目前在19个监测站点部署了仪器，下文将按自然资源管理区（Natural Resource Management，简称NRM）对各站点进行汇总，各站点的仪器部署时段亦一并列出；部分站点于2014年停止部署，但相关数据仍可下载。
约克角自然资源管理区（Cape York NRM）：
安南-恩迪沃夫重点区域：福雷斯特礁（2020年至今）、道森礁（2020年至今）
湿热带自然资源管理区（Wet Tropics NRM）：
巴伦-戴恩特里重点区域：斯纳珀岛北（2007-2014年）
拉塞尔-马尔格雷夫重点区域：菲茨罗伊岛西（2007年至今）、高岛西（2007年至今）、拉塞尔-马尔格雷夫河锚站（2015年至今）、弗兰克兰西（2007年至今）
塔利重点区域：邓克岛北（2007年至今）、塔利河锚站（2015年至今）
伯德金自然资源管理区（Burdekin NRM）：佩洛鲁斯（2007年至今）、潘多拉（2007年至今）、杰弗里湾（2007年至今）、伯德金河锚站（2015年至今）
麦凯-惠森迪自然资源管理区（Mackay Whitsunday NRM）：双锥岛（2007年至今）、白日梦岛（2007-2014年）、派恩岛（2007年至今）、西福德岛（2015年至今）、雷普尔斯岛潜水锚站（2015-2021年）、奥康奈尔河锚站（2021年至今）
菲茨罗伊自然资源管理区（Fitzroy NRM）：2005-2014年由MMP WQ监测，2020年起由菲茨罗伊盆地项目监测：鹈鹕岛（2007-2015年）、汉皮岛（2007-2015年、2021年至今）、巴伦岛（2007-2015年、2021年至今）、菲茨罗伊河河口（2021年至今）
仪器每次部署时长约为4个月，部署位置为水下5米处。仪器每10分钟采集1组样本，每组数据点为50次瞬时突发读数的平均值。每台仪器部署前后均需进行检查，内容包括最大荧光响应值与暗计数（dark count，无外部荧光输入时的仪器响应，即基准‘零点’）的测定。仪器在水下部署12至18个月后，需送至美国WET Labs工厂进行维护与校准检查。仪器回收后，需按照制造商的标准规程进行清洁、数据下载，并将原始仪器记录转换为标准测量单位：叶绿素荧光单位为微克每升（μg L⁻¹），浊度单位为浊度单位（NTU）。部署信息及所有原始、转换后的仪器记录均存储于由澳大利亚海洋科学研究所（Australian Institute of Marine Science，简称AIMS）开发的基于Oracle的数据库管理系统中。数据处理的详细规程可参见MMP WQ的质量保证与质量控制（QA/QC）报告（见下文‘相关信息’板块的链接）。
仪器数据需与同期采集的水样进行验证。为将监测仪的荧光与浊度校准至原位监测条件，每年需采集3次用于叶绿素a与总悬浮固体分析的水样。采用潜水员操作的尼斯金采水器（Niskin bottle）在锚定监测仪附近采集水样，水样的保存与分析流程与船载水样一致（见下文‘相关信息’板块的链接）。
约克角自然资源管理区的仪器部署于水下3米处，其数据处理与维护规程与其他区域不同，相关细节详见下文链接的仪器数据文件。
2005年至2022年的仪器数据可按小时或日平均格式下载（见下文‘数据下载’板块的链接）。2023年起（约克角站点除外）的仪器数据已上传至澳大利亚海洋数据网络（Australian Ocean Data Network，简称AODN），格式为netCDF文件（见下文链接）。