TraCE Meltwater Scenario

Prefix Years BP ICE-5G ice sheet and topography NH freshwater to ocean SH freshwater to ocean Geography change Notes
trace.01 22000-20001 LGM        
trace.02 20000-19001      
trace.03 19000-18501 NA      
trace.04 18500-18401 19.0      
trace.05 18400-17501 NA,GOM      
trace.06 17500-17001 18.0      
trace.07 17000-16001 17.0 NA      
trace.08 16000-15001 16.0        
trace.09 15000-14901 15.0        
trace.10 14900-14351          
trace.11 14350-13871   MR,GOM RS,WS   new atm/lnd timestep (14.35ka)
trace.12 13870-13101 14.0 NRD,GOM,SLR RS    
trace.13 13100-12901 13.0 Barents Sea opens (13.1ka)  
trace.14 12900-12501   SLR   Bering Strait opens (12.9ka)  
trace.15 12500-12001 12.5 SLR,MR    
trace.16 12000-11701 12.0 SLR    
trace.17 11700-11301 11.5 A,SLR,HS, BS,NS RS,WS    
trace.18 11300-10801 11.0      
trace.19 10800-10200 10.5      
trace.20 10200-09701 10.0      
trace.21 09700-09201 9.5 A,SLR,HS    
trace.22 09200-08701 9.0      
trace.23 08700-08501 8.5      
trace.24 08500-08001      
trace.25 08000-07601 8.0      
trace.26 07600-07201 7.5  
Hudson
Bay opens (7.6ka)
 		 
trace.27 07200-06701 7.0      
trace.28 06700-06201 6.5      
trace.29 06200-05701 6.0  
Indonesian
Throughflow (6.2ka)
 		 
trace.30 05700-05001 5.5      
trace.31 05000-04001 4.5        
trace.32 04000-03201 3.5        
trace.33 03200-02401 2.5        
trace.34 02400-01401 2.0        
trace.35 01400-00401 0.5        
trace.36 00400BP-
1990CE2 		modern        
2Time variable is relative to 1950CE.  
 
Key  
A             Arctic Ocean  
BS           Barents Sea  
GOM       Gulf of Mexico  
HS           Hudson Strait  
MR          MacKenzie River  
NA          North Atlantic  
NRD       Nordic Sea  
NS           North Sea  
SLR         St. Lawrence River  
RS            Ross Sea  
WS          Weddell Sea  
 
 
 
 
Filename Construction  
Form:           Prefix.{Years}BP.cam2.h0.{Variable}.{YearCountFrom22ka}.nc  
Example:     trace.02.20000-19001BP.cam2.h0.CLDHGH.02001-03000.nc  
 
             
Location of meltwater forcing   
     
Location Longitude Latitude        
North Atlantic 80W-20E 50N-70N  
Mackenzie river 210E-240E 65N-75N  
Nordic Sea 15W-30E 55N-75N  
St. Lawrence River 270E-310E 38N-60N  
Gulf of Mexico 255E-280E 15N-33N  
Ross Sea 140E-220E 60S-80S  
Weddell Sea 70W-30E 60S-80S  
Half Weddell Sea 70W-15E 65S-80S  
Hudson Strait 280E-312E 55N-70N  
Arctic 200E-275E 70N-76N  
Barents Sea 25E-55E 65N-80N  
North Sea 0E-12E 45N-62N  
       
Evolution of meltwater flux  
 
Experiment Age (ka) NHMW (m/kyr) NHMW location SHMW (m/kyr) SHMW location  
TraCE-LGM 22-19          
TraCE-H1 19-18.4 3 North Atlantic      
18.4-17.5 Ramping 3 to 5 North Atlantic      
 
 
Ramping 0 to 5 Gulf of Mexico      
 
 
17.5-17.0 Ramping 5 to 15 North Atlantic      
 
 
5 Gulf of Mexico      
TraCE-BA 17-14.67 15 North Atlantic      
14.67-14.35          
TraCE-mwp-1A 14.35-14.10 Ramping 0 to 10 MacKenzie River Ramping 0 to 30 Ross Sea  
 
 
Ramping 0 to 10 Gulf of Mexico Ramping 0 to 30 Weddell Sea  
 
 
14.10-13.85 Ramping 10 to 0 MacKenzie River Ramping 30 to 0 Ross Sea  
 
 
Ramping 10 to 0 Gulf of Mexico Ramping 30 to 0 Weddell Sea  
 
 
TraCE-preYD 13.87-12.9 1 Nordic Sea 5 Ross Sea  
13.87-13.4 4 Gulf of Mexico      
13.4-12.9 2.4 Gulf of Mexico      
13.4-12.9 1.6 St.Lawrence River      
TraCE-YD 12.9-12.5 14 St.Lawrence River      
12.5-12.2 20 St.Lawrence River      
12.2-12.0 6 St.Lawrence River      
14 MacKenzie River      
12.0-11.7 12 St.Lawrence River      
11.7-11.3 0.15 St.Lawrence River 1.12 Weddell Sea  
0.29 Hudson Strait 1.12 Ross Sea  
0.15 Arctic      
0.38 North Sea      
0.13 Barents Sea      
TraCE-Holocene 11.3-10.8 0.55 Arctic 1.12 Weddell Sea  
0.55 St.Lawrence River 1.12 Ross Sea  
1.03 Hudson Strait      
1.32 Barents Sea      
3.96 North Sea      
10.8-10.0 0.55 Arctic 1.12 Weddell Sea  
0.55 St.Lawrence River 1.12 Ross Sea  
1.03 Hudson Strait      
0.68 Barents Sea      
2.03 North Sea      
10.0-09.8 0.55 Arctic 1.12 Weddell Sea  
0.55 St.Lawrence River 1.12 Ross Sea  
1.03 Hudson Strait      
0.2 Barents Sea      
0.6 North Sea      
09.8-09.0 0.55 Arctic 1.12 Weddell Sea  
0.55 St.Lawrence River 1.12 Ross Sea  
1.03 Hudson Strait      
09.0-08.0 0.42 Arctic 1.12 Weddell Sea  
0.42 St.Lawrence River 1.12 Ross Sea  
7.47 Hudson Strait      
438 (5 Sv) at 8.47ka for half a year Hudson Strait      
08.0-07.6 0.02 Arctic 1.12 Weddell Sea  
0.02 St.Lawrence River 1.12 Ross Sea  
0.33 Hudson Strait      
07.6-06.85 0.17 Arctic 1.12 Weddell Sea  
0.17 St.Lawrence River 1.12 Ross Sea  
3.13 Hudson Strait      
06.85-06.0 0.01 Arctic 1.12 Weddell Sea  
0.01 St.Lawrence River 1.12 Ross Sea  
0.21 Hudson Strait      
06.0-05.0     1.12 Weddell Sea  
    1.12 Ross Sea  
05.0-00.0