1983 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	201.1	204.3	202.5	203.3	205.7	201.6	203.0	200.4	197.9	198.1	204.1	204.3	207.7	212.3	216.1	212.7	216.0	222.8	223.8	224.3	228.4	223.2	224.0	227.3	224.3	224.6	227.1	229.0	232.8	232.4	-9999.0
34	Hudson Bay	218.6	219.0	224.1	230.3	226.6	224.9	237.8	225.4	211.3	215.9	223.2	204.5	209.1	228.8	224.9	212.8	224.8	240.2	255.5	254.0	258.8	253.0	250.4	261.7	266.1	264.1	252.4	241.2	242.4	242.9	-9999.0
36	Hudson Strait	195.7	205.8	206.7	223.5	231.9	237.3	243.3	215.9	177.0	178.3	224.6	170.3	157.6	208.2	266.4	253.0	243.0	277.1	278.4	249.9	255.2	251.9	257.4	255.2	244.3	246.5	240.8	262.9	275.9	251.3	-9999.0
98	Bering Strait	184.5	185.7	191.8	206.8	224.0	205.2	199.8	199.3	199.4	189.9	189.0	210.1	220.2	230.6	245.6	233.4	234.5	231.7	223.7	217.8	231.2	214.6	237.1	246.3	233.0	225.6	235.4	243.2	245.6	243.5	-9999.0
128	Arctic subocean	130.2	115.1	105.8	108.8	105.6	101.3	104.0	114.8	134.5	133.8	117.9	121.4	134.1	140.8	143.0	147.4	141.2	141.3	155.9	161.2	146.1	142.5	138.3	138.3	136.6	152.3	163.3	162.7	166.4	172.1	-9999.0
130	Chukchi Sea	157.7	169.8	180.1	186.3	201.9	208.2	202.5	204.4	179.0	159.0	155.7	160.2	164.0	189.3	235.8	211.8	220.1	234.0	218.6	222.5	220.2	212.9	253.2	261.8	217.7	218.9	240.0	234.5	247.5	231.9	-9999.0
132	Beaufort Sea	220.8	225.2	227.7	218.3	246.2	234.3	230.5	206.5	190.2	186.5	198.7	201.8	223.4	226.6	238.1	258.9	258.4	256.9	230.4	232.6	252.6	261.4	250.8	258.2	237.2	238.5	239.4	237.5	239.9	225.4	-9999.0
134	Arctic Archipelago	164.0	171.5	159.5	165.2	160.2	170.3	141.7	139.0	136.7	151.0	163.8	169.7	170.5	162.3	182.1	201.5	198.1	199.0	230.6	221.6	203.2	198.5	214.3	214.6	208.4	192.2	181.3	170.4	173.2	177.9	-9999.0
136	Foxe Basin	171.1	167.2	165.1	175.1	193.4	187.4	192.6	162.7	132.0	133.0	150.6	159.2	171.4	160.6	167.0	184.1	183.8	162.5	203.7	236.6	234.6	212.4	214.3	192.9	204.7	217.2	224.2	220.1	202.8	220.4	-9999.0
138	Baffin Bay	115.1	120.1	100.3	107.7	121.1	113.4	103.8	114.5	117.9	119.2	124.2	133.0	120.5	121.0	120.4	122.3	116.8	127.7	135.9	131.8	152.8	160.6	170.8	181.4	176.4	189.3	193.9	186.5	186.6	142.5	-9999.0
139	South Greenland	161.0	173.4	154.3	131.0	125.1	137.0	156.7	171.4	158.7	165.2	184.1	174.4	158.3	159.9	154.4	153.8	171.1	188.1	188.5	195.0	203.9	208.4	225.1	234.5	226.5	208.7	217.2	209.8	210.3	212.3	-9999.0
140	Greenland Sea	96.9	107.3	98.9	87.1	81.6	80.9	96.1	113.4	111.0	118.9	134.8	172.2	177.0	172.8	155.4	133.6	116.7	123.3	116.9	115.1	110.2	115.0	133.3	146.2	157.1	160.1	163.0	169.2	172.1	150.2	-9999.0
142	Norwegian Sea	250.8	227.5	226.4	262.8	251.0	263.2	266.0	261.8	249.7	239.9	243.6	239.8	229.0	247.3	267.0	291.3	298.5	268.7	284.1	280.1	277.6	296.1	283.2	266.2	274.5	254.8	246.2	238.1	251.4	268.0	-9999.0
144	Barents Sea	256.9	231.1	250.7	254.5	253.6	264.1	260.9	259.5	266.1	259.3	251.4	237.7	219.8	218.0	213.1	232.8	238.3	250.1	250.6	283.7	273.4	250.6	263.7	282.4	298.5	290.2	276.7	254.3	238.6	211.6	-9999.0
146	Kara Sea	232.0	235.1	219.1	206.0	204.4	202.3	206.6	208.3	215.2	218.4	225.9	227.0	239.0	239.8	238.5	221.3	227.6	243.1	244.6	242.5	247.9	232.8	216.1	213.6	211.8	220.8	232.0	246.9	249.9	258.6	-9999.0
148	Laptev Sea	173.6	186.2	205.1	215.0	215.2	205.9	207.6	213.1	213.3	203.3	197.6	196.9	198.3	199.8	206.8	208.5	199.1	186.6	190.0	195.1	197.4	200.2	205.4	208.0	205.4	202.9	209.7	216.1	230.3	242.2	-9999.0
150	East Siberian Sea	177.7	180.7	169.9	194.3	201.7	179.6	171.1	163.7	169.4	178.0	183.2	198.4	187.2	182.9	179.3	188.2	211.6	219.3	197.3	185.3	185.2	188.5	196.3	190.2	198.0	202.5	204.8	192.2	203.9	212.0	-9999.0
152	Gulf of Alaska	238.5	219.7	227.8	268.0	243.6	215.6	207.1	208.4	204.8	201.3	199.5	263.5	263.3	268.2	269.5	270.7	254.1	248.1	249.4	243.3	245.7	238.9	258.6	252.8	242.5	228.1	226.1	240.1	272.4	253.9	-9999.0
154	Southeast Bering Sea	204.0	225.0	230.3	260.6	249.6	245.7	232.3	203.2	218.1	217.7	240.7	251.2	216.2	239.9	275.5	229.6	238.6	254.2	240.4	231.2	225.6	249.2	305.5	273.7	237.7	246.7	232.3	292.4	263.8	242.0	-9999.0