Shipboard sensor data from along the ship track of R/V New Horizon cruises NH0005and NH0007 in the Northeast Pacific in 2000 as part of the U.S. GLOBEC program (NEP project)

Website: https://www.bco-dmo.org/dataset/2460
Data Type: Cruise Results
Version: 1
Version Date: 2007-04-06

Project
» U.S. GLOBEC Northeast Pacific (NEP)

Program
» U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)
ContributorsAffiliationRole
Batchelder, HalOregon State University (OSU-CEOAS)Principal Investigator
Allison, DickyWoods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager

Abstract
Shipboard sensor data from along the ship track of R/V New Horizon cruises NH0005and NH0007 in the Northeast Pacific in 2000 as part of the U.S. GLOBEC program.


Coverage

Spatial Extent: N:44.6902 E:-122.1927 S:37.5097 W:-126.2055
Temporal Extent: 2000-05-28 - 2000-08-12

Dataset Description

PI: H. Batchelder
Dataset: Alongtrack data (MET & navigation)
Ship: R/V New Horizon
Cruises: NH0005, NH0007

Sensor locations were as follows:

Location         Unit                               Sensors

Flying Bridge Coastal Environmental WeatherPak temp_air,press_bar, winds, radiation_s, radiation_l, humidity Aft Lab SeaBird SBE21 Thermosalinograph Temp, Conductivity Wetlabs Wetstar Fluorometer Relative Fluorescence Engine Room Dual Temperature Unit temp_ss, temp_ss_sec Chart Room Pcode Receiver Trimble Differential GPS lat, lon Bridge Gyro Compass

Last modified: 14 February 2001


Methods & Sampling

The data were colleted at 15 s intervals throughout the duration of each cruise.

Wind data collected on board were post-processed to true winds using a software algorithms developed by Shawn R. Smith and Mark A. Bourassa for the WOCEMET software analysis package (wocemet@coaps.fsu.edu). The algorithms was implemented in a matlab function (truewind1.m; written by Hal Batchelder, hbatchelder@oce.orst.edu) that takes 1) direction the bow is pointing, 2) course over which the vessel is moving (may be different from bow direction), 3) speed of vessel over the ground, 4) wind direction referenced to the ship, zero line reference (e.g., angle between the bow and the zero line n the anemometer), and a convention for reporting the output (conv = 0 is meteorological; conv = 1 is oceanographic). The function returns 1) true wind direction, referenced to the fixed earth, 2) true wind speed, referenced to the fixed earth, and 3) apparent wind direction.

Relative fluorescence and wind data were significantly noisier than most other data types. To reduce the high-f equency noise, east wind, north wind and relative fluorescence were filtered (averaged) over a 3 min sampling window (12 observations), although the data are still reported here at 15 s intervals.


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Data Files

File
alongtracknh.csv
(Comma Separated Values (.csv), 16.85 MB)
MD5:b6a48d8669a5f9c3c75b4c1efca33307
Primary data file for dataset ID 2460

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Parameters

ParameterDescriptionUnits
yrday_utc

UTC yearday (noon Jan1 = 1.5)

yearday
yrday_local

local yearday (noon Jan1 = 1.5)

yearday
lon

longitude

decimal degrees
lat

latitude

decimal degrees
cond

conductivity

mmhos/cm
sal_ss

salinity

psu
temp_ss

temperature, primary

degrees Centigrade
temp_ss_sec

temperature, secondary

degrees Centigrade
fluor

relative fluorescence

volts
temp_air

air temperature

degrees Centigrade
humidity

relative humidity

%
press_bar

barometric pressure

millibars
radiation_s

short wave radiation

W/m<sup>2
radiation_l

long wave radiation

W/m2
wind_east_c

eastward wind speed, corrected for ship motion

meters/second
wind_north_c

northward wind speed, corrected for ship motion

meters/second
month_gmt

Month, GMT.

dimensionless
day_gmt

Day of month (GMT).

dimensionless
time_gmt

Time (GMT); 24 hr clock.

hours and minutes
cruiseid

Cruise identifier.

dimensionless
ship

Name of the vessel.

dimensionless
year

Year of the cruise.

4-digit year
ISO_DateTime_UTC

Date and time (UTC) formatted to ISO8601 standard. T indicates start of time string; Z indicates UTC.

YYYY-mm-ddTHH:MM:SS.ssZ


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Instruments

Dataset-specific Instrument Name
Thermosalinograph
Generic Instrument Name
Thermosalinograph
Dataset-specific Description
Thermosalinograph used to obtain a continuous record of sea surface temperature and salinity.
Generic Instrument Description
A thermosalinograph (TSG) is used to obtain a continuous record of sea surface temperature and salinity. On many research vessels the TSG is integrated into the ship's underway seawater sampling system and reported with the underway or alongtrack data.


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Deployments

NH0005

Website
Platform
R/V New Horizon
Report
Start Date
2000-05-28
End Date
2000-06-13
Description
Methods & Sampling
Wind data collected on board were post-processed to true winds using a software algorithms developed by Shawn R. Smith and Mark A. Bourassa for the WOCEMET software analysis package (wocemet@coaps.fsu.edu). The algorithms was implemented in a matlab function (truewind1.m

Processing Description
written by Hal Batchelder, hbatchelder@oce.orst.edu) that takes 1) direction the bow is pointing, 2) course over which the vessel is moving (may be different from bow direction), 3) speed of vessel over the ground, 4) wind direction referenced to the ship, zero line reference (e.g., angle between the bow and the zero line n the anemometer), and a convention for reporting the output (conv = 0 is meteorological

NH0007

Website
Platform
R/V New Horizon
Report
Start Date
2000-07-27
End Date
2000-08-12
Description
Methods & Sampling
Wind data collected on board were post-processed to true winds using a software algorithms developed by Shawn R. Smith and Mark A. Bourassa for the WOCEMET software analysis package (wocemet@coaps.fsu.edu). The algorithms was implemented in a matlab function (truewind1.m

Processing Description
written by Hal Batchelder, hbatchelder@oce.orst.edu) that takes 1) direction the bow is pointing, 2) course over which the vessel is moving (may be different from bow direction), 3) speed of vessel over the ground, 4) wind direction referenced to the ship, zero line reference (e.g., angle between the bow and the zero line n the anemometer), and a convention for reporting the output (conv = 0 is meteorological


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Project Information

U.S. GLOBEC Northeast Pacific (NEP)


Coverage: Northeast Pacific Ocean, Gulf of Alaska


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.



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Program Information

U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)


Coverage: Global


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).



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Funding

Funding SourceAward
National Oceanic and Atmospheric Administration (NOAA)
National Science Foundation (NSF)

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