Current direction, benthic organisms, zooplankton, chemical, toxis substances, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 1981-03-24 to 1982-02-19 (NODC Accession 8200129)

Current direction, benthic organisms, zooplankton, chemical, toxic substances, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico from March 24, 1981 to February 19, 1982. Data were submitted by Texas A&M University as part of the Brine Disposal project. Data has been been processed by NODC to the NODC standard F005- Current Meter Data, F069- Marine Chemistry, F123- Fish Shellfish Resource, F124- Zooplankton, F132- Benthic Organisms, and F144- Marine Toxic Substances formats. Full format and format code descriptions are available at http://www.nodc.noaa.gov/General/NODC-datafmts.html. The F005 format is used for time series measurements of ocean currents obtained using moored current-measuring instruments, principally Aanderaa current meters (manufactured by Aanderaa Instruments Inc.). These data represent the Eulerian method of current measurement, i.e., the meters are deployed at a fixed mooring point and measure flow past the sensor. Position, water depth, and sensor depth are reported for each station. The data record comprises values of current direction and speed at specified date and time. Data values may be subject to averaging or filtering and are typically reported at 10-15 minute time intervals. Other environmental parameters may also be reported. These include: water temperature, salinity, conductivity, and transmissivity; wind direction and speed; and dominant wave direction, height, and period. A text field is available for optional comments. The F069 format is used for data from chemical analyses of seawater samples. Cruise information, position, date, and time is reported for each station along with sample depth, temperature, salinity, and density (sigma-t). Chemical and biochemical parameters that may be reported include: dissolved oxygen, nitrate, nitrite, ammonia, inorganic phosphate, and silicate; dissolved organic carbon, particulate organic carbon, and particulate organic nitrogen; and apparent oxygen utilization, percent oxygen saturation, adenosine triphosphate, total phaeophytin, total chlorophyll, total suspended matter, total recoverable petroleum hydrocarbons, and total resolved light hydrocarbons. The F123 format is used for data from field sampling of marine fish and shellfish. The data derive from analysis of midwater or bottom tow catches and provide information on population density and distribution. Cruise information, position, date, time, gear type, fishing distance and duration, and number of hauls are reported for each survey. Environmental data may include meteorological conditions, surface and bottom temperature and salinity, and current direction and speed. Bottom trawl or other gear dimensions and characteristics are also reported. Catch statistics (e.g., weight, volume, number of fish per unit volume) may be reported for both total haul and for individual species. Biological characteristics of selected specimens, predator/ prey information (from stomach contents analysis), and growth data may also be included. A text record is available for comments. The F124 format is used for data from sampling and analysis of marine zooplankton. Information on zooplankton abundance, distribution, and productivity derived from these data support studies of marine populations and ecosystems. Data reported may include: cruise information, position, date, and time of sampling; bottom depth, sampling depths, temperature, and salinity; gear type, volume of water filtered, total dry and wet weight, and other data for total haul; and data for subsamples by species. Data on zooplankton catch by species may include subsample size, zooplankton concentration, life history code, and numbers of adults, juveniles, eggs, and larvae. Estimated density of holoplankton and meroplankton and data on ichthyoplankton may also be reported. A text record is available for comments. Note: there are two options for reporting subsample counts of individuals at different life history stages. If life history codes are used, only number of adults should be reported on that record. Additional separate records should then be used to report number of juveniles and so on. Alternatively, life history codes may not be used and number of adults, juveniles, and so entered in the proper fields of a single record. The F132 format contains data from field sampling or surveys of bottom dwelling marine organisms. The data provide information on species abundance, distribution, and biomass; they may have been collected by point sampling (grab or core), by tow (dredge, trawl or net), by photographic surveys, or by other methods. Cruise information such as vessel, start and end dates, investigator, and institution/agency; station numbers, positions and times; and equipment and methods are reported for each survey. Environmental data reported at each sampling site may include meteorological and sea surface conditions; surface and bottom temperature, salinity and dissolved oxygen; and sediment characteristics. Number of individual organisms and total weight of organisms is reported for each species. A text record is available for comments. The F144 format contains data on ambient concentrations of toxic substances and other pollutants in the marine environment. The data derive from laboratory analyses of samples of water, sediment, or marine organisms. Samples may have been collected near marine discharge sites or during ocean monitoring surveys of large areas. Field observations of tar deposits on beaches may also be reported. Survey information includes platform type, start and end dates, and investigator and institution. If data are collected near a discharge site, discharge location, depth, distance to shore, average volume, and other characteristics are reported. Position, date, time and environmental conditions are reported for each sample station. Environmental data may include meteorological and sea surface conditions, tide stage and height, depth of the thermocline or mixed layer surface temperature and salinity, and wave height and periods. Sample characteristics, collection methods, and laboratory techniques are reported for each sample collected and analyzed. The data record comprises concentration values (or a code to indicate trace amounts) for each chemical substance analyzed. Chemical substances are identified by codes based on the registry numbers assigned by the Chemical Abstracts Service (CAS) of the American Chemical Society. Marine organisms from which samples have been taken are identified using the 12-digit NODC Taxonomic Code. A text record is available for optional comments.1981年3月24日至1982年2月19日期间，研究团队于墨西哥湾通过锚定海流计投放及其他仪器手段，采集了海流方向、底栖生物、浮游动物、化学物质、有毒物质及其他相关数据。该数据集由得克萨斯农工大学（Texas A&M University）作为“盐水处置（Brine Disposal）”项目的一部分提交。美国国家海洋数据中心（National Oceanographic Data Center, NODC）已将这些数据处理为符合NODC标准的六类格式：F005-海流计数据、F069-海洋化学数据、F123-鱼类与贝类资源数据、F124-浮游动物数据、F132-底栖生物数据以及F144-海洋有毒物质数据。完整的格式及格式代码说明可访问http://www.nodc.noaa.gov/General/NODC-datafmts.html获取。 F005格式用于锚定海流测量仪器（主要为Aanderaa Instruments Inc.生产的Aanderaa海流计）获取的海流时间序列测量数据。此类数据采用欧拉式海流测量方法，即仪器部署于固定锚泊点位，测量流经传感器的水流。每个测站均记录站位位置、水深及传感器布设深度。数据记录包含指定日期与时间下的海流方向与流速数值。数据值可经过平均或滤波处理，通常以10-15分钟的时间间隔进行上报。此外还可上报其他环境参数，包括水温、盐度、电导率、透射率；风向与风速；以及主浪方向、浪高与浪周期。数据中预留文本字段用于添加可选备注。 F069格式用于海水样本化学分析数据。每个测站均记录航次信息、站位位置、日期与时间，同时附带采样深度、水温、盐度及密度（σ-t）。可上报的化学与生物化学参数包括：溶解氧、硝酸盐、亚硝酸盐、氨、无机磷酸盐与硅酸盐；溶解有机碳、颗粒有机碳与颗粒有机氮；以及表观耗氧量、氧饱和度百分比、三磷酸腺苷、总脱镁叶绿素、总叶绿素、总悬浮颗粒物、总可回收石油烃类与总可识别轻质烃类。 F123格式用于海洋鱼类与贝类的野外采样数据。此类数据源自中层拖网或底拖网渔获物分析，可提供种群密度与分布相关信息。每个调查航次均记录航次信息、站位位置、日期、时间、渔具类型、捕捞距离与时长以及拖网次数。环境数据可包括气象条件、表层与底层水温及盐度，以及海流方向与流速。同时还会上报底拖网或其他渔具的尺寸与特性。可上报渔获统计数据（例如重量、体积、单位体积鱼类数量），涵盖总渔获量与单个物种渔获量。此外还可包含选定标本的生物学特征、捕食者/猎物信息（源自胃容物分析）以及生长数据。数据中预留文本记录字段用于添加备注。 F124格式用于海洋浮游动物采样与分析数据。通过此类数据获取的浮游动物丰度、分布与生产力信息，可支撑海洋种群与生态系统相关研究。上报的数据可包括：航次信息、采样站位位置、日期与时间；底层水深、采样深度、水温与盐度；渔具类型、过滤水体体积、总拖获物干重与湿重及其他相关数据；以及按物种划分的子样本数据。按物种划分的浮游动物渔获数据可包括子样本规模、浮游动物浓度、生活史代码以及成体、幼体、卵与幼虫的数量。还可上报终生浮游生物与阶段性浮游生物的估算密度，以及鱼卵与仔鱼相关数据。数据中预留文本记录字段用于添加备注。注意：针对不同生活史阶段个体的子样本计数，存在两种上报方案。若使用生活史代码，则仅需在该记录中上报成体数量，后续需使用额外独立记录上报幼体等其他阶段的数量。若不使用生活史代码，则可将成体、幼体等数量直接填入单条记录的对应字段中。 F132格式包含底栖海洋生物野外采样或调查数据。此类数据可提供物种丰度、分布与生物量相关信息，采集方式可分为点位采样（抓斗或岩芯采样）、拖网（拖捞网、底拖网或网具）、摄影调查或其他方法。每个调查航次均记录航次信息（如 vessel、起止日期、调查人员及所属机构）、测站编号、位置与时间，以及所用设备与方法。每个采样点位上报的环境数据可包括气象与海表状况、表层与底层水温、盐度及溶解氧，以及沉积物特性。每个物种的个体数量与总生物量均会被记录。数据中预留文本记录字段用于添加备注。 F144格式包含海洋环境中有毒物质与其他污染物的环境浓度数据。此类数据源自水、沉积物或海洋生物样本的实验室分析。样本可采集自海洋排放点附近或大范围海域的海洋监测调查期间，也可上报海滩上的沥青沉积现场观测数据。调查信息包括平台类型、起止日期、调查人员及所属机构。若数据采集自排放点附近，则需上报排放位置、深度、离岸距离、平均排放量及其他相关特征。每个采样站位均记录位置、日期、时间与环境条件。环境数据可包括气象与海表状况、潮汐水位与潮高、温跃层或混合层深度、表层水温与盐度，以及浪高与浪周期。每个采集并分析的样本均会上报样本特征、采集方法与实验室技术手段。数据记录包含每种分析化学物质的浓度数值（或用于指示痕量含量的代码）。化学物质通过美国化学学会（American Chemical Society）化学文摘社（Chemical Abstracts Service, CAS）分配的登记号对应的代码进行识别。采集样本所用的海洋生物采用12位NODC分类代码进行标识。数据中预留文本记录字段用于添加可选备注。