Temperature and Salinity data from the Long-Term Observation Program (LTOP) Mooring site NH10 on the Oregon Shelf from 1997-2004 as part of the U.S. GLOBEC program (NEP project)

Website: https://www.bco-dmo.org/dataset/2459
Data Type: Cruise Results
Version: 1
Version Date: 2007-04-13

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

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

Abstract
Temperature and Salinity data from the Long-Term Observation Program (LTOP) Mooring site NH10 on the Oregon Shelf from 1997-2004 as part of the U.S. GLOBEC program.


Coverage

Spatial Extent: Lat:44.6467 Lon:-124.3067
Temporal Extent: 2000-04-12 - 2004-09-07

Dataset Description

Temperature and Salinity U.S. GLOBEC Long-Term Observation Program (LTOP) NH10 Mooring Data

A long-term mooring site on the Oregon shelf (44.6467N -124.3067E) was established in August 1997 and maintained with few gaps through December 2004 with U.S. GLOBEC funding. The mooring is at 81 m water depth, near the historical Newport Hydrographi Line. The nearest standard NH line station is NH10 (10 nautical miles off shore), so this mooring is referred to as Mooring NH10.

Upward looking acoustic Doppler current profilers have been used to measure vertical profiles of water velocity (insert actual sample interval here) at 2 or 4 m vertical intervals depending on instrument (data elsewhere on U.S. GLOBEC data server). The mooring is serviced in spring and fall. Temperature records are available for 11 depths; salinities for 4 depths. There are a few data gaps.

Temperature and salinity are processed using a cosine-Lanczos filter with a 40-hr half-power point. Six-hourly data included here are temperature (deg C) and salinity (PSS: unitless).

The data were collected by Mike Kosro, 104 COAS Admin Bldg, COAS, Oregon State University, Corvallis, OR 97331-5503 ( kosro@coas.oregonstate.edu; Phone: 541-737-3079).

Last modified: March 26, 2006


Methods & Sampling

Upward looking acoustic Doppler current profilers have been used to measure vertical profiles of water velocity (insert actual sample interval here) at 2 or 4 m vertical intervals depending on instrument (data elsewhere on U.S. GLOBEC data server).


Data Processing Description

Currents are processed using a cosine-Lanczos filter with a 40-hr half-power point. Six-hourly data included here are Eastward (u) and Northward (v) velocities in cm/s interpolated to 2 m depth bins.

The data were collected by Mike Kosro, 104 COAS Admin Bldg, COAS, Oregon State University, Corvallis, OR 97331-5503 ( kosro@coas.oregonstate.edu; Phone: 541-737-3079).


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Data Files

File
NH10_ts6hr.csv
(Comma Separated Values (.csv), 4.85 MB)
MD5:808791b04835233c750a673d4ccea6fa
Primary data file for dataset ID 2459

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Parameters

ParameterDescriptionUnits
yearYear. dimensionless
mooringMooring identifier (NH10 for this dataset). dimensionless
latLatitude in decimal degrees North decimal degrees
longLongitude in decimal degrees East decimal degrees
depth_wWater depth in meters meters
depthDepth in meters meters
julian_dayJulian day, where JD2440000 is 0000 hrs on 23 May 1968. dimensionless
yrday0_gmtDay of Year, where 0.5 is 1200 hrs on 1 January. dimensionless
month_gmtMonth in GMT. dimensionless
day_gmtDay of Month in GMT. dimensionless
time_gmtTime of Day in GMT (HHMM). dimensionless
tempTemperature (deg C) degrees centigrade
salSalinity PSS (unitless)


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Instruments

Dataset-specific Instrument Name
Acoustic Doppler Current Profiler
Generic Instrument Name
Acoustic Doppler Current Profiler
Dataset-specific Description
Upward looking acoustic Doppler current profilers have been used to measure vertical profiles of water velocity (insert actual sample interval here) at 2 or 4 m vertical intervals depending on instrument (data elsewhere on U.S. GLOBEC data server). The mooring is serviced in spring and fall. Temperature records are available for 11 depths; salinities for 4 depths.
Generic Instrument Description
The ADCP measures water currents with sound, using a principle of sound waves called the Doppler effect. A sound wave has a higher frequency, or pitch, when it moves to you than when it moves away. You hear the Doppler effect in action when a car speeds past with a characteristic building of sound that fades when the car passes. The ADCP works by transmitting "pings" of sound at a constant frequency into the water. (The pings are so highly pitched that humans and even dolphins can't hear them.) As the sound waves travel, they ricochet off particles suspended in the moving water, and reflect back to the instrument. Due to the Doppler effect, sound waves bounced back from a particle moving away from the profiler have a slightly lowered frequency when they return. Particles moving toward the instrument send back higher frequency waves. The difference in frequency between the waves the profiler sends out and the waves it receives is called the Doppler shift. The instrument uses this shift to calculate how fast the particle and the water around it are moving. Sound waves that hit particles far from the profiler take longer to come back than waves that strike close by. By measuring the time it takes for the waves to bounce back and the Doppler shift, the profiler can measure current speed at many different depths with each series of pings. (More from WHOI instruments listing).


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Deployments

NH10

Website
Platform
Mooring NH10
Start Date
1997-08-01
End Date
2004-12-01
Description
Moored buoy owned and maintained by Oregon Coastal Ocean Observing System (OrCOOS). See more information from OrCOOS and NOAA.

Methods & Sampling
Temperature and Salinity U.S. GLOBEC Long-Term Observation Program (LTOP) NH10 Mooring Data A long-term mooring site on the Oregon shelf (44.6467N -124.3067E) was established in August 1997 and maintained with few gaps through December 2004 with U.S. GLOBEC funding. The mooring is at 81 m water depth, near the historical Newport Hydrographi Line. The nearest standard NH line station is NH10 (10 nautical miles off shore), so this mooring is referred to as Mooring NH10. Upward looking acoustic Doppler current profilers have been used to measure vertical profiles of water velocity (insert actual sample interval here) at 2 or 4 m vertical intervals depending on instrument (data elsewhere on U.S. GLOBEC data server). The mooring is serviced in spring and fall. Temperature records are available for 11 depths; salinities for 4 depths. There are a few data gaps. Temperature and salinity are processed using a cosine-Lanczos filter with a 40-hr half-power point. Six-hourly data included here are temperature (deg C) and salinity (PSS: unitless). The data were collected by Mike Kosro, 104 COAS Admin Bldg, COAS, Oregon State University, Corvallis, OR 97331-5503 ( kosro@coas.oregonstate.edu; Phone: 541-737-3079).

Processing Description
Currents are processed using a cosine-Lanczos filter with a 40-hr half-power point. Six-hourly data included here are Eastward (u) and Northward (v) velocities in cm/s interpolated to 2 m depth bins. The data were collected by Mike Kosro, 104 COAS Admin Bldg, COAS, Oregon State University, Corvallis, OR 97331-5503 ( kosro@coas.oregonstate.edu; Phone: 541-737-3079).


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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)
NSF Division of Ocean Sciences (NSF OCE)

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