Auxiliary Material for Paper 2012GB004299

Landscape-level controls on dissolved carbon flux from diverse catchments of the circumboreal

Suzanne E. Tank 
Department of Geography, York University, Toronto, Ontario, Canada

Karen E. Frey 
Department of Geography, Clark University, Worcester, Massachusetts, USA

Robert G. Striegl 
U.S. Geological Survey, Boulder, CO, USA

Peter A. Raymond 
Yale School of Forestry and Environmental Studies,Yale University, New Haven, Connecticut, USA

Robert M. Holmes 
Woods Hole Research Center, Falmouth, Massachusetts, USA

James W. McClelland 
Marine Science Institute, University of Texas at Austin, Port Aransas, Texas, USA

Bruce J. Peterson 
Ecosystems Center, Marine Biological Laboratory, Woods Hole, Massachusetts, USA


Tank, S. E., K. E. Frey, R. G. Striegl, P. A. Raymond, R. M. Holmes, J. W. McClelland, and B. J. Peterson (2012), Landscape-level controls on dissolved carbon flux from diverse catchments of the circumboreal, Global Biogeochem. Cycles, 26, GB0E02, doi:10.1029/2012GB004299.

Introduction

This auxiliary material consists of one text file containing a detailed description of the study regions, and two tables.  The first table (S1) gives the detailed results from the regression analysis shown in Figure 4.  The second table (S2) gives details of the end-member values used in the mixing model analysis.  
 

1. 2012gb004299-txts01.txt
Text S1. A detailed description of the four study regions from which data were
obtained.

2. 2012gb004299-ts01.txt
Table S1. Results of the regression analyses shown in Figure 4.   

Table columns:
Column 1: Variable; dependant variable
Column 2: JN_INT; Intercept from the June regression
Column 3: JN_COEFF; Coefficient from the June regression
Column 4: JN-p; p-value from the June regression
Column 5: AU_INT; Intercept from the August regression
Column 6: AU_COEFF; Coefficient from the August regression
Column 7: AU_p; p-value from the August regression


3. 2012gb004299-ts02.txt
Table S2. End-member values used for the mixing model analysis, as described in
the main text.

Table columns:
Column 1: Description of rock type
Column 2: Indicates mean or standard deviation of end-member
Column 3: Ca/Na ratio value
Column 4: Mg/Na ratio value
Column 5: HCO3/Na ratio value
Column 6: Sr/Na ratio value, multiplied by 1000
Column 7: Cl/Na ratio value