1980 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	196.2	192.3	191.1	188.2	188.4	190.6	197.3	201.2	202.4	204.9	213.2	218.9	217.6	215.9	217.8	212.9	210.1	214.9	221.6	230.3	228.5	228.8	229.6	230.6	233.6	234.2	236.9	235.0	233.6	234.5	-9999.0
34	Hudson Bay	227.2	223.1	222.4	226.7	210.7	211.2	222.4	215.3	228.4	246.2	247.3	241.8	249.4	247.6	227.2	239.3	247.6	261.8	264.1	274.2	277.4	264.3	253.2	270.4	268.5	268.8	267.4	280.2	286.9	290.9	-9999.0
36	Hudson Strait	197.0	206.8	211.2	172.6	219.1	229.3	181.1	178.5	179.9	172.7	217.4	242.0	208.3	257.6	218.4	169.5	179.8	209.0	175.8	228.3	210.2	240.3	241.4	226.4	259.9	214.1	219.7	228.5	235.3	204.9	-9999.0
98	Bering Strait	238.8	247.6	227.5	206.6	204.2	196.8	206.3	206.1	204.6	209.6	214.9	221.6	211.7	218.3	217.4	201.0	200.0	205.4	224.1	223.7	222.7	231.8	226.2	221.8	234.7	240.6	232.6	232.6	233.7	226.1	-9999.0
128	Arctic subocean	134.8	133.0	121.7	120.4	131.5	143.8	145.4	140.5	151.7	149.4	140.4	128.0	121.9	137.0	177.2	165.0	161.4	171.8	152.5	145.8	151.8	144.4	139.3	157.3	169.3	150.0	141.9	168.5	183.6	189.2	-9999.0
130	Chukchi Sea	231.9	235.4	213.6	212.5	187.9	158.2	167.5	175.8	190.8	171.7	156.7	153.2	176.0	207.8	198.4	183.4	177.5	174.8	190.6	203.1	204.7	206.1	236.0	224.9	232.5	221.8	215.4	214.1	213.5	209.4	-9999.0
132	Beaufort Sea	223.7	227.4	233.0	204.0	192.6	194.6	221.1	223.7	223.6	224.4	235.7	260.3	260.1	230.7	263.1	243.4	255.6	239.5	259.3	259.2	234.5	246.9	256.2	251.9	272.1	270.6	283.5	275.0	277.2	251.2	-9999.0
134	Arctic Archipelago	191.5	156.9	165.7	169.2	167.7	155.3	165.3	177.0	184.6	168.4	184.3	192.9	196.2	157.6	155.3	171.3	172.2	199.2	190.7	204.1	195.2	181.2	189.6	194.1	199.7	219.4	214.2	228.5	223.1	236.4	-9999.0
136	Foxe Basin	223.1	217.7	187.6	180.2	157.0	208.6	236.4	214.3	187.8	180.2	160.9	170.5	169.7	163.2	152.6	155.7	161.0	153.1	148.5	164.1	223.1	242.5	205.8	199.6	184.8	190.9	212.8	172.1	172.9	186.7	-9999.0
138	Baffin Bay	141.8	144.8	143.6	145.5	144.4	148.0	148.3	163.8	151.0	138.0	129.8	115.3	107.8	115.2	115.7	125.6	104.7	108.1	129.9	136.0	144.8	151.9	174.4	161.7	144.5	138.0	136.9	137.2	133.5	129.7	-9999.0
139	South Greenland	146.5	139.0	164.4	158.7	163.6	163.1	195.3	186.0	158.5	148.5	145.7	143.6	138.3	142.2	159.8	178.7	156.5	172.1	197.5	192.9	154.5	160.2	194.4	190.0	154.9	153.8	159.9	159.7	152.5	161.8	-9999.0
140	Greenland Sea	103.0	101.6	105.2	114.8	124.8	123.4	128.9	136.8	129.2	135.4	134.6	128.6	125.3	164.7	160.8	125.6	114.0	118.9	134.1	159.0	145.3	118.2	131.4	148.0	148.6	146.2	178.6	204.3	182.5	185.0	-9999.0
142	Norwegian Sea	239.6	262.0	267.1	260.6	297.2	266.6	270.4	244.6	249.2	255.7	260.6	271.2	258.7	266.1	255.6	290.4	266.7	261.1	258.8	257.5	261.7	265.6	276.9	230.4	223.5	241.6	268.4	263.2	264.9	254.7	-9999.0
144	Barents Sea	217.0	215.3	221.0	221.7	225.4	236.1	260.2	251.9	248.5	256.9	246.2	237.3	233.1	214.5	217.2	220.3	240.8	245.3	244.8	265.4	273.5	256.6	258.8	281.2	276.4	272.2	251.8	228.5	227.9	232.3	-9999.0
146	Kara Sea	201.0	187.7	178.6	183.8	191.9	198.3	199.9	215.3	221.1	224.1	239.6	244.0	243.2	248.4	258.1	240.8	222.9	225.4	229.1	238.5	243.0	250.2	251.5	247.5	249.6	250.1	251.9	246.5	241.3	239.1	-9999.0
148	Laptev Sea	162.0	171.5	170.8	171.9	170.7	169.0	167.0	171.5	174.7	178.0	189.9	201.5	200.9	198.5	199.2	201.8	203.0	209.8	221.2	224.1	219.9	220.2	211.2	214.7	220.9	221.0	232.9	222.1	221.6	236.2	-9999.0
150	East Siberian Sea	160.9	161.4	174.0	163.4	164.6	174.4	167.3	167.2	156.7	157.3	169.0	193.9	184.4	184.1	171.7	172.7	173.6	165.0	164.1	186.4	190.7	187.3	183.4	173.8	188.2	192.6	197.4	198.7	198.4	209.1	-9999.0
152	Gulf of Alaska	269.2	276.7	245.8	226.2	250.6	242.2	239.8	238.4	217.3	227.3	264.0	268.0	246.5	239.4	220.2	225.9	230.0	237.1	253.9	242.6	254.3	253.6	236.7	232.3	247.6	273.9	253.5	253.6	253.0	260.3	-9999.0
154	Southeast Bering Sea	273.0	237.6	256.3	255.4	240.0	247.6	239.9	238.1	234.8	217.7	208.2	208.3	246.4	233.4	225.9	206.8	230.5	225.2	219.9	221.7	265.0	242.1	249.6	233.8	230.1	256.3	248.3	261.8	255.3	248.8	-9999.0