Contributors | Affiliation | Role |
---|---|---|
Batchelder, Hal | Oregon State University (OSU-CEOAS) | Principal Investigator |
Allison, Dicky | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
CTD Rosette Bottle Data from 2002 GLOBEC NEP cruises:
New Horizon Cruise (NH0207: 1-19 August 2002)
Wecoma Cruise (W0205: 29 May - 18 June 2002)
Notes:
Physical data processed by Jane Fleischbein (OSU).
Chlorophyll readings done by Leah Feinberg (OSU).
Nutrient analysis done by Burke Hales (OSU).
Summary prepared (22 July 2003) by: Hal Batchelder, Oregon State University, Corvallis, OR 97331-503. hbatchelder@coas.oregonstate.edu
Metadata Last updated 23 May 2012 (reformatting)
Nutrient samples were collected from most bottles; all nutrient data developed from samples frozen during the cruise and analyzed ashore; data developed by Burke Hales (OSU).
Sal00 - salinity calculated from primary sensors (C0,T0).
Sal11 - salinity calc. from secondary sensors (C1,T1).
Secondary sensor pair was used in final processing of CTD data for most stations because the primary had more noise and spikes. The primary pair were used for cast# 9,24,48,111 and 150 due to multiple spikes or offsets in the secondary pair.
Operation Detection Limits for Nutrient Concentrations (Units are micromoles per liter):
PO4 Range: 0.003-0.004; Mean = 0.004.
NO3+NO2 Range: 0.04-0.08; Mean = 0.06.
Si(OH)4 Range: 0.13-0.24; Mean=0.16.
NO2 Range: 0.003-0.004; Mean = 0.003.
File |
---|
bottle_data_2002_rs.csv (Comma Separated Values (.csv), 345.52 KB) MD5:fa4b21a9fa2c43338dfd821fd46447d0 Primary data file for dataset ID 2452 |
Parameter | Description | Units |
cruiseid | Cruise identification. | dimensionless |
ship | Name of ship. | dimensionless |
year | Year in YYYY format. | unitless |
cast | CTD cast number. | dimensionless |
station_std | Standard station name. | dimensionless |
month_gmt | month of year, GMT | MM |
day_gmt | day of month, GMT | DD |
time_gmt | time, GMT | HHmm |
lat | latitude, negative = South | decimal degrees |
lon | longitude, negative = West | decimal degrees |
bottle | Rosette bottle number. | dimensionless |
press | pressure at depth of bottle trip (sample depth) | decibars |
chl_a | chlorophyll-a concentration, total | ug/L |
chl_a_10um | chlorophyll-a concentration in the less then 10um fraction | ug/L |
phaeo | phaeopigment concentration, total | ug/L |
phaeo_10um | phaeopigment concentration in the less then 10um fraction | ug/L |
sal | salinity calculated from primary CTD sensors of temperature and conductivity | psu |
sal2 | salinity calculated from secondary CTD sensors of temperature and conductivity | psu |
temp | temperature from primary CTD temp sensor | degrees C. |
temp2 | temperature from secondary CTD temp sensor | degrees C. |
flvolt | fluorescence | volts |
trans_v | transmissometer (light transmission) | volts |
PO4 | phosphate concentration | umoles/L |
NO3_NO2 | nitrate+nitrite combined concentration | umoles/L |
NO3 | Nitrate [by subtraction] | umoles/L |
SiOH_4 | silicate (Orthosilicic Acid) concentration | umoles/L |
NO2 | Nitrite concentration | umoles/L |
NH4 | ammonium ion concentration | umoles/L |
o2 | oxygen concentration | ml/L |
par_v | photo synthetically available radiation | volts |
Dataset-specific Instrument Name | Conductivity, Temperature, Depth |
Generic Instrument Name | CTD - profiler |
Dataset-specific Description | CTD measurements taken, CTD unit unidentified |
Generic Instrument Description | The Conductivity, Temperature, Depth (CTD) unit is an integrated instrument package designed to measure the conductivity, temperature, and pressure (depth) of the water column. The instrument is lowered via cable through the water column. It permits scientists to observe the physical properties in real-time via a conducting cable, which is typically connected to a CTD to a deck unit and computer on a ship. The CTD is often configured with additional optional sensors including fluorometers, transmissometers and/or radiometers. It is often combined with a Rosette of water sampling bottles (e.g. Niskin, GO-FLO) for collecting discrete water samples during the cast.
This term applies to profiling CTDs. For fixed CTDs, see https://www.bco-dmo.org/instrument/869934. |
Dataset-specific Instrument Name | Niskin Bottle |
Generic Instrument Name | Niskin bottle |
Dataset-specific Description | Niskin bottle cast used to collect water samples for pigment, nutrient, plankton, etc. analysis |
Generic Instrument Description | A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc. |
Website | |
Platform | R/V Wecoma |
Report | |
Start Date | 2002-05-29 |
End Date | 2002-06-18 |
Description | Methods & Sampling Nutrient samples were collected from most bottles.Wecoma Cruise (W0205: 29 May - 18 June 2002) Processing Description All nutrient data developed from samples frozen during the cruise and analyzed ashore. Physical data processed by Jane Fleischbein (OSU) Chlorophyll readings done by Leah Feinberg (OSU) Nutrient analysis done by Burke Hales (OSU) Sal00 - salinity calculated from primary sensors (C0,T0) Sal11 - salinity calc. from secondary sensors (C1,T1) secondary sensor pair was used in final processing of CTD data for most stations because the primary had more noise and spikes The primary pair were used for cast# 9,24,48,111 and 150 due to multiple spikes or offsets in the secondary pair Nutrient samples were collected from most bottles; all nutrient data developed from samples frozen during the cruise and analyzed ashore; data developed by Burke Hales (OSU). Operation Detection Limits for Nutrient Concentrations Nutrient Range Mean Variable Units PO4 0.003-0.004 0.004 Phosphate micromoles per liter NO3+NO2 0.04-0.08 0.06 Nitrate+Nitrite micromoles per liter Si(OH)4 0.13-0.24 0.16 Silicate micromoles per liter NO2 0.003-0.004 0.003 Nitrite micromoles per liter |
Website | |
Platform | R/V New Horizon |
Report | |
Start Date | 2002-07-31 |
End Date | 2002-08-19 |
Description | Methods & Sampling Nutrient samples were collected from most bottlesNew Horizon Cruise (NH0207: 1-19 August 2002) Processing Description All nutrient data developed from samples frozen during the cruise and analyzed ashore. Physical data processed by Jane Fleischbein (OSU) Chlorophyll readings done by Leah Feinberg (OSU) Nutrient analysis done by Burke Hales (OSU) Sal00 - salinity calculated from primary sensors (C0,T0) Sal11 - salinity calc. from secondary sensors (C1,T1) secondary sensor pair was used in final processing of CTD data for most stations because the primary had more noise and spikes The primary pair were used for cast# 9,24,48,111 and 150 due to multiple spikes or offsets in the secondary pair Nutrient samples were collected from most bottles; all nutrient data developed from samples frozen during the cruise and analyzed ashore; data developed by Burke Hales (OSU). Operation Detection Limits for Nutrient Concentrations Nutrient Range Mean Variable Units PO4 0.003-0.004 0.004 Phosphate micromoles per liter NO3+NO2 0.04-0.08 0.06 Nitrate+Nitrite micromoles per liter Si(OH)4 0.13-0.24 0.16 Silicate micromoles per liter NO2 0.003-0.004 0.003 Nitrite micromoles per liter |
Program in a Nutshell
Goal: To understand the effects of climate variability and climate change on the distribution, abundance and production of marine animals (including commercially important living marine resources) in the eastern North Pacific. To embody this understanding in diagnostic and prognostic ecosystem models, capable of capturing the ecosystem response to major climatic fluctuations.
Approach: To study the effects of past and present climate variability on the population ecology and population dynamics of marine biota and living marine resources, and to use this information as a proxy for how the ecosystems of the eastern North Pacific may respond to future global climate change. The strong temporal variability in the physical and biological signals of the NEP will be used to examine the biophysical mechanisms through which zooplankton and salmon populations respond to physical forcing and biological interactions in the coastal regions of the two gyres. Annual and interannual variability will be studied directly through long-term observations and detailed process studies; variability at longer time scales will be examined through retrospective analysis of directly measured and proxy data. Coupled biophysical models of the ecosystems of these regions will be developed and tested using the process studies and data collected from the long-term observation programs, then further tested and improved by hindcasting selected retrospective data series.
U.S. GLOBEC (GLOBal ocean ECosystems dynamics) is a research program organized by oceanographers and fisheries scientists to address the question of how global climate change may affect the abundance and production of animals in the sea.
The U.S. GLOBEC Program currently had major research efforts underway in the Georges Bank / Northwest Atlantic Region, and the Northeast Pacific (with components in the California Current and in the Coastal Gulf of Alaska). U.S. GLOBEC was a major contributor to International GLOBEC efforts in the Southern Ocean and Western Antarctic Peninsula (WAP).
Funding Source | Award |
---|---|
NSF Division of Ocean Sciences (NSF OCE) | |
National Oceanic and Atmospheric Administration (NOAA) |