Sulfate
 
   
C130
KCO
KCO
KCO
KCO
KCO
KCO
RB
RB
RB
RB
     
MOUDI
MOUDI
MOUDI
Sierra
ATOFMS
ATOFMS
Berner
Berner
ATOFMS
ATOFMS
     
< 1 um
< 1.8
< 2.5
< 1.14
0.2 – 1.0
1.0 – 2.5
< 0.5
< 1.0
0.2 – 1.0
1.0 – 2.5
   
ug/m3
ug/m3
ug/m3
ug/m3
ug/m3
#/cc
#/cc
ug/m3
ug/m3
#/cc
#/cc
                         
L SIO                
0.6
   
L NIO                
1.8
3.4
0.3
L BoBNE                      
M BoBNE
1.77
                   
H BoBNE
3.6
           
8.2
     
L BoBE
0.6
1.85
2.3
               
M BoBE  
5.2
5.9
 
3.1 ± 0.84
   
4.4
     
H BoBE  
5.6
6.7
19
5.1 ± 2.2
74.5
0.5
   
79
0.5
L AS
2.8
           
1.5
1.8    
M AS
2.9
     
3.6 ± 0.44
   
3.6
4.4
97
0.7
H AS
5.2 - 13
     
5.2 ± 2.5
   
4.5
6.0
29
0.5

Low scattering: 0.6 (SIO), 1.8 (NIO), 0.6 – 2 (L BoBE), 1.5 – 3 (L AS)
Medium scattering: 1.8 (BoBNE), 4 – 6 (BoBE), 3 – 4.4 (AS)
High scattering: 4 – 8 (BoBNE), 6 – 7 (BoBE), 4 – 13 (AS)

Agreement between platforms: Agree within uncertainty of size cuts and natural variability.
MOUDI fine filter (<2.5 um) gives higher values.



Potassium
 
   
C130
KCO
KCO
KCO
KCO
KCO
KCO
RB
RB
RB
RB
     
MOUDI
MOUDI
MOUDI
Sierra
ATOFMS
ATOFMS
Berner
Berner
ATOFMS
ATOFMS
     
< 1 um
< 1.8
< 2.5
< 1.14
0.2 – 1.0
1.0 – 2.5
< 0.5
< 1.0
0.2 – 1.0
1.0 – 2.5
   
ug/m3
ug/m3
ug/m3
ug/m3
ug/m3
#/cc
#/cc
ug/m3
ug/m3
#/cc
#/cc
                         
L SIO              
0.003
0.004
   
L NIO              
0.08
 
T 58

NSS 56

T 2.1

NSS 0.08

L BoBNE                      
M BoBNE
0.04
       
T 314

NSS 314

1.9

0.3

       
H BoBNE
0.15
           
0.4
0.55
   
L BoBE
0.07
                   
M BoBE              
0.37
0.42
   
H BoBE
0.38
                   
L AS              
0.04
0.05
T 200

NSS 196

T 1.3

NSS 0.6

M AS
0.27
           
0.2
0.24
T 256

NSS 231

T 1.0

NSS 0.5

H AS
0.2 – 0.53
           
0.27
0.35
   

Low scattering: 0.003 – 0.1 (SIO and NIO), 0.07 (BoBE), 0.04 (AS)
Medium scattering: 0.04 (BoBNE), 0.4 (BoBE), 0.2 – 0.3 (AS)
High scattering: 0.1 – 0.55 (BoBNE), 0.4 (BoBE), 0.2 – 0.5 (AS)

Agreement between platforms: Agree within uncertainty of size cuts and natural variability.



Sodium
 
   
C130
KCO
KCO
KCO
KCO
KCO
KCO
RB
RB
RB
RB
     
MOUDI
MOUDI
MOUDI
Sierra
ATOFMS
ATOFMS
Berner
Berner
ATOFMS
ATOFMS
     
< 1 um
< 1.8
< 2.5
< 1.14
0.2 – 1.0
1.0 – 2.5
< 0.5
< 1.0
0.2 – 1.0
1.0 – 2.5
   
ug/m3
ug/m3
ug/m3
ug/m3
ug/m3
#/cc
#/cc
ug/m3
ug/m3
#/cc
#/cc
                         
L SIO              
0.009
0.03
   
L NIO              
0.007
0.035
   
L BoBNE                      
M BoBNE
0.017
                   
H BoBNE
0.034
           
0.024
0.049
   
L BoBE
0.17
                   
M BoBE        
0.07±0.05
           
H BoBE
0.35
     
0.14± .04
   
0.005
0.006
   
L AS              
0.016
0.035
   
M AS
0.21
     
0.12±0.02
   
0.013
0.08
   
H AS
< = 0.15
     
0.13±0.03
   
0.024
0.06
   

Assume all Na due to sea salt. C130 values 0.02 – 0.35. RB values 0.005 – 0.08.

RB values lower most likely a reflection of sharper size cuts for Berner than SFUs. Similar for KCO Sierra.


NH4+ / SO4= molar ratio
 
   
C130
KCO
KCO
KCO
KCO
KCO
KCO
RB
RB
RB
RB
     
MOUDI
MOUDI
MOUDI
Sierra
ATOFMS
ATOFMS
Berner
Berner
ATOFMS
ATOFMS
     
< 1 um
< 1.8
< 2.5
< 1.14
0.2 – 1.0
1.0 – 2.5
< 0.5
< 1.0
0.2 – 1.0
1.0 – 2.5
                         
                         
L SIO              
0.4
0.4
   
L NIO              
1.1
1.1
   
L BoBNE                      
M BoBNE
1.3
                   
H BoBNE
1.2
           
0.66
0.63
   
L BoBE
1.7
1.4
                 
M BoBE  
1.5
   
2.8
           
H BoBE
1.2
1.4
   
2.5±.31
   
0.71
0.69
   
L AS              
1.2
1.2
   
M AS
2.0
     
2 ± .43
   
1.5
1.5
   
H AS
1.5
     
2.2 ± .16
   
1.5
1.5
   

Low scattering: 0.4 – 1.1 (SIO), 1.7 (BoBE)
Medium scattering: 1.3 – 1.5 (BoBE and BoBNE), 1.5 – 2 (AS)
High scattering: 0.6 (BoBNE), 0.7 (BoBE), 1.5 (AS)

Aerosol is acidic with respect to sulfate in cleaner low scattering air masses (SIO and NIO).
Ship shows more acidic aerosol than C130 for polluted air masses.


Aerosol Mass
 
   
C130*
KCO
KCO
KCO
KCO**
KCO
KCO
RB
RB
RB
RB
     
MOUDI
MOUDI
MOUDI
Sierra
ATOFMS
ATOFMS
Berner
Berner
ATOFMS
ATOFMS
     
< 1 um
< 1.8
< 2.5
< 1.14 
0.2 – 1.0
1.0 – 2.5
< 0.5
< 1.0
0.2 – 1.0
1.0 – 2.5
   
ug/m3
ug/m3
ug/m3
ug/m3
ug/m3
#/cc
#/cc
ug/m3
ug/m3
#/cc
#/cc
                         
L SIO                
1.1
   
L NIO                
1.4
   
L BoBNE                      
M BoBNE
2.4 (no C)
                   
H BoBNE
8.7
             
21
   
L BoBE
1.1 (no C)
5.7
8
               
M BoBE  
14
16
 
4.1
           
H BoBE
14
17
21
 
10 ± 5
           
L AS                
1.4
   
M AS
4.8
     
8 ± 1.3
     
9.2
   
H AS
15
     
11 ± 4
     
12
   

* Sum of measured components – water soluble inorganic ions and total carbon.
** Sum of measured components – Cl, NO3, SO4, Na, ash, and NH4.

Low scattering: 1.1 – 1.4 (SIO and NIO), 6 – 8 (BoBE), 1.4 (AS)
Medium scattering: 16 (BoBE), 9 (AS)
High scattering: 21 (BoBE), 17 (BoBE), 12 (AS)

KCO and RB in general agreement. Only two platforms with gravimetric mass measurement.


Total Carbon
 
   
C130
KCO
KCO
KCO
KCO
KCO
RB
RB
RB
RB
     
MOUDI
MOUDI
MOUDI
ATOFMS
ATOFMS
Berner
Berner
ATOFMS
ATOFMS
     
< 1 um
< 1.8
< 2.5
0.2 – 1.0
1.0 – 2.5
< 0.5
< 1.0
0.2 – 1.0
1.0 – 2.5
   
ug/m3
ug/m3
ug/m3
ug/m3
#/cc
#/cc
ug/m3
ug/m3
#/cc
#/cc
                       
L SIO                    
L NIO                
1.8
0.01
L BoBNE                    
M BoBNE                    
H BoBNE
3.7
           
2.7
   
L BoBE  
0.94
               
M BoBE  
1.99
         
1.1
   
H BoBE
8.8
4.0
   
120
0.08
       
L AS                    
M AS
1.9
           
1.0
27
0.01
H AS
6 +/- 4
             
26
0.01

C130, KCO, and RB values available although not all samples have been analyzed. Comparison should be repeated when all data are available.
Agreement at this point is very good between platforms. (Which follows the absorption data ).

Low scattering: 0.9 (BoBE)
Medium scattering: 1 – 2 (BoBE and AS)
High scattering: 3 – 4 (BoBNE), 4 – 9 (BoBE), 6+/-4 (AS)


Black Carbon
 
   
C130
KCO
KCO
KCO
KCO
KCO
RB
RB
RB
RB
     
MOUDI
MOUDI
MOUDI
ATOFMS
ATOFMS
Berner
Berner
ATOFMS
ATOFMS
     
< 1 um
< 1.8
< 2.5
0.2 – 1.0
1.0 – 2.5
< 0.5
< 1.0
0.2 – 1.0
1.0 – 2.5
   
ug/m3
ug/m3
ug/m3
ug/m3
#/cc
#/cc
ug/m3
ug/m3
#/cc
#/cc
                       
L SIO                    
L NIO                    
L BoBNE                    
M BoBNE                    
H BoBNE
1.7
           
1.8
   
L BoBE  
0.5
               
M BoBE  
1.1
         
0.7
   
H BoBE
2.6
2.3
               
L AS                    
M AS
0.4
           
0.6
   
H AS
2.8
                 

Agreement at this point is very good between platforms. (Which follows the absorption data ).
Again—only a portion of the data has been looked at.
Values from all high scattering periods are similar.
 
 

Low: 0.5 (BoBE)
Medium 0.7 – 1.1 (BoBE), 0.4 – 0.6 (AS)
High: 1.8 (BoBNE), 2.3 – 2.6 (BoBE), 2.8 (AS)



 

BC / TC (BC / SO4)
 
   
C130
KCO
KCO
KCO
KCO
KCO
RB
RB
RB
RB
     
MOUDI
MOUDI
MOUDI
ATOFMS
ATOFMS
Berner
Berner
ATOFMS
ATOFMS
     
< 1 um
< 1.8
< 2.5
0.2 – 1.0
1.0 – 2.5
< 0.5
< 1.0
0.2 – 1.0
1.0 – 2.5
   
ug/m3
ug/m3
ug/m3
ug/m3
#/cc
#/cc
ug/m3
ug/m3
#/cc
#/cc
                       
L SIO                    
L NIO                    
L BoBNE                    
M BoBNE                    
H BoBNE
0.45 (0.5)
           
0.67 (.22)
   
L BoBE  
0.53(0.84) 
               
M BoBE  
0.59
         
0.62 (.15)
   
H BoBE
0.29
0.59
               
L AS                    
M AS
0.24 (0.2)
           
0.62 (.14)
   
H AS
0.48 (0.4)
                 
                       
  ACE 2
0.35 (.09)
                 
                       

BC/TC:

Low scattering: 0.53 (BoBE)
Medium: 0.6 (BoBE), 0.24 (AS)
High: 0.4 – 0.7 (BoBNE), 0.3 (BoBE), 0.5 (AS)
BC/SO4:

Variable across air masses and platforms. Needs more data. But always higher than ACE 2 average of 0.09.