1951 04 - daily  - mean of NCEP mean Daily Downward Longwave Radiation Flux at surface, W/m^2.
BasinID	Name	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
0	Pan Arctic	213.5	211.2	209.4	206.2	202.3	206.6	208.0	209.6	209.2	212.9	215.0	216.5	217.8	219.3	222.3	222.5	219.4	216.8	216.4	221.5	226.2	225.2	225.3	224.1	232.2	240.9	245.7	249.0	249.9	249.4	-9999.0
34	Hudson Bay	232.7	236.5	236.2	252.6	237.2	222.4	223.6	244.4	251.9	246.0	236.2	250.1	251.1	249.7	243.6	236.5	238.1	233.3	223.5	222.2	228.6	241.7	237.7	223.5	223.6	239.1	254.3	284.2	284.4	282.3	-9999.0
36	Hudson Strait	220.2	237.4	228.1	222.5	253.8	217.6	187.4	223.7	185.4	203.9	210.1	218.8	266.6	279.6	260.3	267.6	274.4	269.7	247.3	228.7	212.9	194.8	269.1	260.2	184.6	204.2	223.3	200.9	195.1	165.8	-9999.0
98	Bering Strait	211.0	216.3	213.5	200.8	194.0	219.8	208.6	202.6	210.3	223.5	216.9	208.8	192.4	231.2	240.0	254.3	256.1	240.8	228.6	228.9	241.6	211.7	203.1	206.4	212.1	232.7	222.1	223.0	230.9	232.4	-9999.0
128	Arctic subocean	141.7	137.3	142.6	134.8	129.4	118.8	111.1	115.2	119.0	128.5	148.2	180.7	169.0	158.7	151.5	158.8	172.6	181.3	170.9	147.4	138.0	136.2	134.9	141.5	153.5	190.2	182.1	178.5	198.9	187.2	-9999.0
130	Chukchi Sea	190.8	194.3	196.9	198.4	184.0	197.7	203.1	202.5	181.0	192.2	189.2	189.3	182.6	203.7	247.0	272.3	255.6	256.8	228.2	253.0	227.1	184.6	199.1	212.8	163.8	156.5	191.8	199.8	226.2	209.7	-9999.0
132	Beaufort Sea	215.0	242.2	243.9	218.7	204.6	220.1	247.8	230.5	220.8	210.9	230.9	227.7	214.7	195.9	197.9	213.5	207.8	194.4	203.2	218.0	226.1	224.4	216.4	216.4	228.1	233.6	247.8	266.4	261.0	267.5	-9999.0
134	Arctic Archipelago	186.2	163.8	185.5	198.8	183.0	188.0	174.8	162.3	159.9	156.1	161.6	172.5	174.2	172.0	168.6	191.6	184.7	171.7	180.7	214.2	200.5	172.7	175.9	181.1	194.1	194.3	205.9	231.4	238.3	239.3	-9999.0
136	Foxe Basin	215.9	205.2	174.2	178.4	245.5	253.8	223.1	191.2	174.6	227.2	221.6	176.6	181.8	194.3	182.4	163.7	157.0	160.1	181.1	192.6	222.8	230.4	209.0	236.9	220.9	184.0	192.0	177.9	164.9	168.2	-9999.0
138	Baffin Bay	112.1	107.4	110.3	105.5	115.5	132.3	154.1	162.6	137.1	139.1	142.7	140.8	126.6	115.6	122.5	130.3	133.1	129.6	119.5	117.2	132.0	142.4	141.8	147.4	201.2	201.0	173.0	171.0	171.1	157.7	-9999.0
139	South Greenland	158.1	155.0	147.3	147.7	141.8	180.2	180.7	165.4	172.0	149.6	149.0	163.2	139.9	119.3	131.1	130.4	129.6	132.8	146.5	167.7	178.6	176.5	164.6	182.3	213.7	204.6	210.4	196.5	178.5	208.7	-9999.0
140	Greenland Sea	125.2	124.4	105.1	122.5	105.9	95.1	96.9	114.1	110.2	106.0	115.7	135.1	127.5	113.1	131.0	153.3	142.5	143.7	137.2	138.3	141.1	138.6	137.3	143.7	147.0	174.4	178.8	195.9	221.6	184.1	-9999.0
142	Norwegian Sea	231.8	241.2	244.8	240.4	255.5	248.1	241.4	261.0	271.8	247.0	224.1	240.9	265.2	253.1	242.4	248.2	256.1	246.9	233.4	229.2	244.9	261.0	288.4	287.6	276.9	256.1	276.7	258.8	233.6	254.5	-9999.0
144	Barents Sea	238.1	235.7	253.8	248.9	249.6	247.2	279.1	241.6	249.1	279.4	284.4	269.7	247.0	250.3	256.8	259.3	266.9	275.4	257.5	268.6	259.5	251.8	268.7	259.6	285.3	281.1	259.0	284.3	302.0	253.2	-9999.0
146	Kara Sea	250.5	240.9	227.1	216.1	223.2	230.9	227.4	235.4	233.0	228.3	230.7	235.0	237.5	237.8	245.5	236.0	233.6	235.3	240.5	245.0	249.7	248.1	246.9	249.5	258.1	267.9	274.4	267.9	263.6	268.2	-9999.0
148	Laptev Sea	195.8	183.3	184.1	181.5	164.2	162.2	170.2	179.6	177.0	198.7	213.9	200.7	223.9	234.4	229.9	226.5	214.4	212.6	215.0	216.9	222.2	225.7	229.0	226.6	228.7	239.4	247.9	247.6	263.2	268.0	-9999.0
150	East Siberian Sea	161.4	169.1	193.1	197.4	200.7	195.4	176.1	165.7	194.6	221.3	190.5	201.0	200.9	205.7	222.2	213.0	216.1	219.6	221.0	218.4	234.7	250.7	238.8	221.4	230.9	251.2	241.4	203.6	188.9	198.3	-9999.0
152	Gulf of Alaska	257.3	252.3	231.4	228.2	234.7	261.6	224.7	232.5	227.9	236.2	236.1	213.7	230.5	269.1	249.6	265.7	263.7	254.3	232.5	223.2	225.8	236.6	256.2	246.8	267.4	262.5	258.1	260.0	242.3	234.4	-9999.0
154	Southeast Bering Sea	256.1	240.6	233.1	233.9	235.6	261.5	237.4	218.2	201.4	204.1	197.5	191.5	261.7	279.9	276.9	292.2	237.5	219.1	237.7	231.1	227.4	228.7	231.0	238.3	273.6	275.2	265.9	259.4	233.7	220.6	-9999.0