General Cruise Information;			
Underway SOMMA:  Operations, Data Reduction and Quality Control;			
Surface Bottle Data			

General Cruise Information:			
Ship				Ronald H. Brown
Year				1998
Cruise name			RB-98-02 (OACES)
Leg				2
Date depart			5/25/98
Date arrive			6/26/98
Port depart			Lisbon
Port arrive			Azores
Chief scientist			Richard Wanninkhof
pCO2 operator			Robert Castle
pCO2 (responsible person)	Robert Castle
TCO2 (responsible person)	Esa Peltola
Chl (responsible person)	Jason Masters
O2 (responsible person)		George Berberian


Underway SOMMA (AOML-1) Operations, Data Reduction and Quality Control:		
			
Operations:			
1. May 25:	Departure from Lisbon. The sampling started at 18:15		
2. May 30:	The coulometer AOML-1 was unstable and it was switched to AOML-2 at 00:50.		
3. Jun 1:	The system locked up when attempting to read coulometer at 13:05.		
		It was restarted at 14:20.		
4. Jun 3:	The cell was unstable at 00:25.		
		At 18:07 was noticed, there was no sample water flow.	
5. Jun 10:	The system locked up at 14:15.		
6. Jun 11:	The system hang up at 18:00.		
7. Jun 13:	The system hung up at 16:52.			
8. Jun 21:	Water leak at 19:49. Device timeout at 20:05. The computer did not read the barometer.			
		The system hang up at 20:50. The system was running again at 22:35.			
9. Jun 22:	The system hang up at 20:02.			
10. Jun 24:	At 11:42 disk error. 			
11. Jun25:	Sample collection was completed at 7:00.			
12. Jun 26:	Arrival to Azores.			

Data Reduction and Quality Control:				
This data was reduced by Kitack Lee. (Contact: Tel. (305) 361 4389, Email. Lee@aoml.noaa.gov)			
1. No salinity correction was applied for these samples.				
2. CRM correction:				
    Dickson CRM batch #42 was used to correct the data.				
    Average of the measured CRMs:			1982.1
    Standard deviation of the measured CRMs:		2.6
    Number of the measured CRMs:			38
    Certified value:					1983.6
    Correction						1.5
3. LAT and LONG were added.				
4. Quality control:				
    The following plots were created and used to evaluate the data:				
    TCO2 vs. Julian Time				
    TCO2 vs. LAT				
    TCO2 vs. LONG				
    Chlorophyll  vs. Julian Time				
    Chlorophyll  vs. LAT				
    Chlorophyll  vs. LONG				
    Chlorophyll vs. TCO2				
    Temperature vs. TCO2				
    Salinity vs. TCO2				
    fCO2 (water) vs. TCO2				
    fCO2 (air) vs. TCO2				


Surface Bottle Data:

This data will be available soon.