Meteorology and?SST 1 minute data from non-US GLOBEC cruises from eleven R/V Oceanus and R/V Endeavor cruises in the North Atlantic, SE of New England, Gulf of Maine and Georges Bank from 1996-1998 (GB project)

Website: https://www.bco-dmo.org/dataset/3496
Version: final
Version Date: 2011-06-30

Project
» U.S. GLOBEC Georges Bank (GB)

Program
» U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)
ContributorsAffiliationRole
Payne, RichardWoods Hole Oceanographic Institution (WHOI)Principal Investigator
Groman, Robert C.Woods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager


Dataset Description

 

Continuous along track meteorology and sea surface data,
1 minute values, 1997

Processed by:

Richard Payne
Woods Hole Oceanographic Institution 
Woods Hole, MA 20543
rpayne@whoi.edu
 
Additional 
data processing notes are available.

The sea surface temperature as measured by the hull sensor is not shown since the sea surface temperature as measured via the engine inlet (field name is temp_ss1) is more accurate.

Processing Notes

  1. Concatenate daily 1 minute files into one file for whole cruise
  2. Edit file for obvious bad data, i.e., missing data, garbage characters, etc.
  3. Run program which reformats data. Output parameters:
    Year day, lat, long, Speed made good, course made good, gyro 1 & 2, Edo speed, Edo indicator, port wind speed, starboard ws, port wind azimuth, starboard waz, air temp, relative humidity, barometric pressure, sea surface temp @5m & 1m depth, Edo depth, Chirp sonar depth.
  4. Put plots of all parameters on screen and look for obvious single bad points. Edit in basic concatenated file. Except I have not edited depths.
  5. Iterate steps 2-4 until no more obvious bad points.
  6. Run second program which computes true wind speed and direction from speed and course made good, gyros, larger of port or starboard ws and accompanying wind azimuth. Outputs are year day, lat lon, speed and course made good, gyro, relative ws and direction, true ws and direction, air temp, relative humidity, barometric pressure, short- and long-wave radiation,5m and 1m sea surface temps, Edo depth, Chirp sonar depth, Edo speed, Edo indicator.
  7. Check plots of true wind speed and direction to make sure they look ok.
  8. Run vector averaging program which produces 60 minute series. The program uses 60 consecutive records and does not check for missing records. I have not carried depths since hourly averages do not seem useful nor Edo speeds since they seem pretty generally useless. Output parameters are: Year day, lat, long, true wind speed and direction, air temp, relative humidity, barometric pressure, short- and long-wave radiation, sea surface temp @ 5m & 1m.

Specific notes:

The data quality is generally pretty poor on the Oceanus cruises. OC297 and OC298 have no SOG, COG,or gyro so I could not correct the winds. I almost set the TWS, TWD to 0 but decided to leave them in as RWS, RWD. One could get a semiqualitative feel for the winds. OC301 had gyro but no SOG, COG so I computed them from the GPS position differences. It came out better than I expected. Warn users to be skeptical about the Oceanus data.

From: Richard E. Payne / 11 Apr 1997 09:05:25 -0400
Updated: April 28, 2004; G.Heimerdinger

updated: June 27, 2011;  MDA


Methods & Sampling

 The sea surface temperature as measured by the hull sensor is not shown since the sea surface temperature as measured via the engine inlet (field name is temp_ss1) is more accurate.


Data Processing Description

 

  1. Concatenate daily 1 minute files into one file for whole cruise
  2. Edit file for obvious bad data, i.e., missing data, garbage characters, etc.
  3. Run program which reformats data. Output parameters:
    Year day, lat, long, Speed made good, course made good, gyro 1 & 2, Edo speed, Edo indicator, port wind speed, starboard ws, port wind azimuth, starboard waz, air temp, relative humidity, barometric pressure, sea surface temp @5m & 1m depth, Edo depth, Chirp sonar depth.
  4. Put plots of all parameters on screen and look for obvious single bad points. Edit in basic concatenated file. Except I have not edited depths.
  5. Iterate steps 2-4 until no more obvious bad points.
  6. Run second program which computes true wind speed and direction from speed and course made good, gyros, larger of port or starboard ws and accompanying wind azimuth. Outputs are year day, lat lon, speed and course made good, gyro, relative ws and direction, true ws and direction, air temp, relative humidity, barometric pressure, short- and long-wave radiation,5m and 1m sea surface temps, Edo depth, Chirp sonar depth, Edo speed, Edo indicator.
  7. Check plots of true wind speed and direction to make sure they look ok.
  8. Run vector averaging program which produces 60 minute series. The program uses 60 consecutive records and does not check for missing records. I have not carried depths since hourly averages do not seem useful nor Edo speeds since they seem pretty generally useless. Output parameters are: Year day, lat, long, true wind speed and direction, air temp, relative humidity, barometric pressure, short- and long-wave radiation, sea surface temp @ 5m & 1m.

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Data Files

File
emet_W1_other.csv
(Comma Separated Values (.csv), 27.56 MB)
MD5:57f44a45dac0bc161bd8c524e0fd9919
Primary data file for dataset ID 3496

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Parameters

ParameterDescriptionUnits
cruiseid

cruise identifier

year

year, GMT e.g. 1997.

si

scientific investigator responsible for this cruise

month_gmt

month of year, GMT e.g. 6 is June

day_gmt

day of month, GMT

time_gmt

time of day, GMT, 24 hour clock

hoursandminutes
lat

latitude, south is negative

decimaldegrees
lon

longitude, west is negative

decimaldegrees
depth_w

water depth

meters
depth_cs

Chirp Sonar water depth

meters
wind_speed_c

wind speed corrected for ship's motion

meters/second
wind_dir_c

wind direction, meteorologic convention, corrected for ship's motion

degrees
wind_speed_r

wind speed, relative to ship

meters/second
wind_dir_r

wind direction, relative to ship, meteorologic convention

degrees
temp_air

air temperature

degreesC
humidity

relative humidity

percent
press_bar

barometric pressure

millibars
precip_level

level in the precipitation gauge, total precipitation between two times is the difference in levels (+50 cm if the gauge self-siphoned)

centimeters
ed_sw

short wave downward irradiance

watts/meter^2/second
ed_lw

long wave downward irradiance

watts/meter^2/second
temp_ss1

sea surface temperature 1 meter below the surface

degreesC
temp_ss3

sea surface temperature 3 meters below the surface

degreesC
temp_ss5

sea surface temperature 5 meters below the surface

degreesC
cond_mM

sea surface conductivity

mmho/centimeter
sal_ss3

sea surface salinity, nominally measured at 3 meters

PSU
speed_trim

trimble GPS speed made good

meters/second
course

ship's course

degrees
course_trim

trimble GPS course made good

degrees
yrday_gmt

Julian day, GMT e.g. 29.5 is January 29 at 1200 hours

decimalday
numb_records

number of records used to compute this value


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Deployments

OC297

Website
Platform
R/V Oceanus
Start Date
1997-01-26
End Date
1997-02-07
Description
Methods & Sampling
 The sea surface temperature as measured by the hull sensor is not shown since the sea surface temperature as measured via the engine inlet (field name is temp_ss1) is more accurate.

Processing Description
Concatenate daily 1 minute files into one file for whole cruise Edit file for obvious bad data, i.e., missing data, garbage characters, etc. Run program which reformats data. Output parameters: Year day, lat, long, Speed made good, course made good, gyro 1 & 2, Edo speed, Edo indicator, port wind speed, starboard ws, port wind azimuth, starboard waz, air temp, relative humidity, barometric pressure, sea surface temp @5m & 1m depth, Edo depth, Chirp sonar depth. Put plots of all parameters on screen and look for obvious single bad points. Edit in basic concatenated file. Except I have not edited depths. Iterate steps 2-4 until no more obvious bad points. Run second program which computes true wind speed and direction from speed and course made good, gyros, larger of port or starboard ws and accompanying wind azimuth. Outputs are year day, lat lon, speed and course made good, gyro, relative ws and direction, true ws and direction, air temp, relative humidity, barometric pressure, short- and long-wave radiation,5m and 1m sea surface temps, Edo depth, Chirp sonar depth, Edo speed, Edo indicator. Check plots of true wind speed and direction to make sure they look ok. Run vector averaging program which produces 60 minute series. The program uses 60 consecutive records and does not check for missing records. I have not carried depths since hourly averages do not seem useful nor Edo speeds since they seem pretty generally useless. Output parameters are: Year day, lat, long, true wind speed and direction, air temp, relative humidity, barometric pressure, short- and long-wave radiation, sea surface temp @ 5m & 1m. Edo depth error correction: replace bad value with previous value. Cruise Exp Spds Dirs AT RH BP SST SSC SWR Prec OC297 GLOBEC Uncor Uncor NoisyBad Good Noisy Good Good Bad

EN283

Website
Platform
R/V Endeavor

EN286

Website
Platform
R/V Endeavor
Description
Processing Description
Edo depth error correction: replace bad value with previous value. EN286 - Processed with ENMET286. RH very noisy. Edo depth had few values so I filled in with Chirp Sonar. Poor quality in combination. 30335 data records, 690 interpolated. Cruise Exp Spds Dirs AT RH BP SST SSC SWR Prec EN286 GLOBEC --- --- --- --- --- --- --- --- ---

EN287

Website
Platform
R/V Endeavor
Description
Processing Description
Edo depth error correction: replace bad value with previous value. EN287 - Clean except for noisy Edo depth. 26,990 data records, 22 interpolated Cruise Exp Spds Dirs AT RH BP SST SSC SWR Prec EN287 GLOBEC --- --- --- --- --- --- --- --- ---

EN293

Website
Platform
R/V Endeavor
Description
Processing Description
Edo depth error correction: replace bad value with previous value. EN293 - Very clean. No Edo depth. 8052 records, no interpolated. Cruise Exp Spds Dirs AT RH BP SST SSC SWR Prec EN293 GLOBEC --- --- --- --- --- --- --- --- ---

EN295

Website
Platform
R/V Endeavor
Description
Processing Description
Edo depth error correction: replace bad value with previous value. EN295 - Very clean. Little useful Edo depth. Blocks of both GPS data missing, but not simultaneously. 37,455 records, 4 interpolated. 6/9/98 - Wrote MET1MIN.FOR to interpolate EN295W.DAT to a 1 minute series on the minute for Beardsley. Output is EN295W1.DAT. Cruise Exp Spds Dirs AT RH BP SST SSC SWR Prec EN295 GLOBEC --- --- --- --- --- --- --- --- ---

EN311

Website
Platform
R/V Endeavor
Description
Processing Description
Edo depth error correction: replace bad value with previous value. EN311 - Good data but no Edo depths. Much Magellan data missing. 7/17/98 - Corrected year day. Cruise Exp Spds Dirs AT RH BP SST SSC SWR Prec EN311 GLOBEC --- --- --- --- --- --- --- --- ---

OC314

Website
Platform
R/V Oceanus
Description
Processing Description
Edo depth error correction: replace bad value with previous value. Cruise Exp Spds Dirs AT RH BP SST SSC SWR Prec OC314 GLOBEC Good Fair Good Good Good BadSpt Good None BadSpt

OC315

Website
Platform
R/V Oceanus
Report
Start Date
1998-01-09
End Date
1998-01-12
Description
Not a GLOBEC Georges Bank cruise, but of interest to the GLOBEC community.

Processing Description
Edo depth error correction: replace bad value with previous value. OC315 - No gyro, set gyro = course made good from GPS Cruise Exp Spds Dirs AT RH BP SST SWR Prec SSC SSAL OC315 GLOBEC Good/no gyroGood Good Good Good Good None Poor None

OC316

Website
Platform
R/V Oceanus
Report
Start Date
1998-01-29
End Date
1998-02-02
Description
Not a GLOBEC Georges Bank cruise, but of interest to the GLOBEC community.

Processing Description
Edo depth error correction: replace bad value with previous value. Cruise Exp Spds Dirs AT RH BP SST SWR Prec SSC SSAL OC316 GLOBEC Good Good Good Good Good Good Good Zero Noisy None

OC323

Website
Platform
R/V Oceanus
Description
Processing Description
Edo depth error correction: replace bad value with previous value. Cruise Exp Spds Dirs AT RH BP SST SWR Prec SSC SSAL OC323 GLOBEC Good Good Good Good Good Good Good Bad Noisy Good


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Project Information

U.S. GLOBEC Georges Bank (GB)


Coverage: Georges Bank, Gulf of Maine, Northwest Atlantic Ocean


The U.S. GLOBEC Georges Bank Program is a large multi- disciplinary multi-year oceanographic effort. The proximate goal is to understand the population dynamics of key species on the Bank - Cod, Haddock, and two species of zooplankton (Calanus finmarchicus and Pseudocalanus) - in terms of their coupling to the physical environment and in terms of their predators and prey. The ultimate goal is to be able to predict changes in the distribution and abundance of these species as a result of changes in their physical and biotic environment as well as to anticipate how their populations might respond to climate change.

The effort is substantial, requiring broad-scale surveys of the entire Bank, and process studies which focus both on the links between the target species and their physical environment, and the determination of fundamental aspects of these species' life history (birth rates, growth rates, death rates, etc).

Equally important are the modelling efforts that are ongoing which seek to provide realistic predictions of the flow field and which utilize the life history information to produce an integrated view of the dynamics of the populations.

The U.S. GLOBEC Georges Bank Executive Committee (EXCO) provides program leadership and effective communication with the funding agencies.



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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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