README_hatteras.txt

Overview:

 This data set provides measurements collected during the Lagrangian Transport and Transformation Experiment (LATTE) during April 2005. Data were collected by a technician aboard the R/V Hatteras using Hatteras insruments.

Data files are partitioned in the following way:

GPS track data from GPS 826 (Samples every 4 sec)
GPS track data from GPS 921 (Samples every 2 sec)
Salinity/Temperature data from SBE 21 Flow through system
Photosynthetically Active Radiation (Licor Quantum Sensor) 
Sea Surface Fluorescence (Turner Fluorometer with data as voltages) 
Wind speed from starboard and Port anemometers
Pre-injection 1 CTD cast 
Pre-injection 2 CTD cast 
CTD data during injection 1
CTD data during injection 2


Data format:

There are two file formats provided, Matlab (*.mat) and ASCII format.

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Variables included in Matlab data files are:
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GPS 826 and GPS 921 files
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Name	Description        
lat	Latitude(Degress)
lon	Longitude(Degrees)
time	Matlab datenum time

Salinity/Temperature file
-------------------------

Name	Description    
sal 	Salinity(PSU)
temp	Temperature(C)	
time  	Matlab datenum time
 
Fluorometer file
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Name	Description 
time	Matlab datenum time
fluor	Fluorometer

   
Licor file
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Name	Description 
licor	LICOR
time	Matlab datenum time

Wind files
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Name		Description 
speed		Wind Speed(m/s)
direction	Wind Direction
time		Matlab datenum time

CTD Pre-injection files
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Name	Description 
PAR	PAR/Irr
btrans	Beam Transmission(%)
depth	Depth(m)
sal	Salinity(PSU) 
temp	Temp(C) 
ox	Oxygen(mg/l) 
time 	Matlab datenum time



CTD Injection files
-------------------------

Name	Description 
PAR	PAR/Irr
btrans	Beam Transmission(%)
depth	Depth(m)
sal	Salinity(PSU) 
temp	Temp(C) 
ox	Oxygen(mg/l) 
time 	Matlab datenum time




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ASCII files are row-column format.
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GPS 826 and GPS 921 files
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Time  Latitude  Longitude



Salinity/Temperature Files
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Time  Salinity(PSU)  Temperature(C) 



Fluorometer file
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Time  Fluorometer



Fluorometer file
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Time  LICOR	



Wind files
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Time	Speed	Direction



CTD Pre-injection files
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First line- time

Then:
Depth(m)    Temp(C)  Salinity(PSU)  Oxygen(mg/l)  Beam Transmission(%)	PAR/Irr             




CTD Injection files
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Time  Depth(m)   Temp(C)  Salinity(PSU)  Oxygen(mg/l)  Beam Transmission(%) PAR/Irr              


Questions? 

Contact 
Eli Hunter 
Rutgers UNiversity
71 Dudley Rd
NEw Brunswick,NJ 08901
732-932-3704
hunter@marine.rutgers.edu