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

General Cruise Information:			
Ship				Ronald H. Brown
Year				1998
Cruise name			Transit
Leg				-
Date depart			7/11/98
Date arrive			7/28/98
Port depart			Miami
Port arrive			Newport
Chief scientist			-
pCO2 operator			Jason Masters
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. Jul 11:	Departure from Miami. Sampling started at 23:00.		
2. Jul 12:	Pipette did not fill. Salinity cell did not fill all the times. Salinity was not registered.		
3. Jul 13:	The problem was solved: The sample bottle was pressurized restricting the out flow through the bottle.		

Data Reduction and Quality Control:			
1. The data from the beginning of the cruise has not been reduced: the CRM values were very much off			
    and seabird did not record salinity.			
2. The salinity correction was done where TSG salinity was available.			
3. CRM correction:			
    Dickson CRM batch #42 and Millero CRM batch#2 were used to correct the data.									
    The certified values for the batches are:									
    Dickson CRM batch #42: 1985.1									
    Millero CRM Batch #2: 2027.3									
    The results obtained from each cell were corrected individually.									
    The difference of the measured and certified value of CRM:									
    7/13-7/14: 	1.929	(MCRM)							
    7/14:	-0.117	(DCRM)							
    7/15:	0.557	(DCRM)							
    7/16-7/17:	2.47	(DCRM)							
    7/17:	4.981	(DCRM)							
    7/17-7/18:	-0.27	(MCRM)							
    7/18:	-2.284	(MCRM)							
    7/18:	1.203	(MCRM)							
    7/19:	-0.659	(MCRM)							
    7/20:	5.756	(DCRM)							
    7/21:	5.91	(DCRM)		
    7/22:	4.895	(DCRM)		
				
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