1983 04 - daily  - mean of NCEP mean Daily Clear Sky Downward Longwave 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	175.6	178.5	178.0	177.5	178.4	177.5	176.2	174.4	173.2	172.9	175.5	176.2	180.0	184.9	186.7	183.9	184.7	191.6	195.2	198.2	201.6	199.1	196.8	198.8	198.5	197.4	199.0	202.0	203.9	203.7	-9999.0
34	Hudson Bay	193.4	197.3	199.6	201.4	204.9	207.1	206.8	198.8	192.2	190.8	190.2	180.1	182.8	194.9	194.1	186.1	195.6	212.6	225.0	231.6	236.7	233.1	228.7	234.2	236.7	231.5	222.2	215.4	213.6	216.9	-9999.0
36	Hudson Strait	169.3	178.1	183.3	188.2	193.6	197.1	200.4	187.1	160.4	155.8	183.4	155.6	142.9	168.2	214.2	224.4	214.9	227.6	241.2	224.3	233.6	224.7	221.8	218.1	213.8	218.2	222.4	232.3	232.7	222.1	-9999.0
98	Bering Strait	170.1	173.0	178.9	187.9	188.0	177.5	172.8	171.7	169.0	162.5	160.5	171.7	183.7	191.8	199.0	195.0	193.0	192.4	189.4	189.8	197.1	195.8	203.6	212.8	211.3	207.3	209.4	213.3	209.5	209.6	-9999.0
128	Arctic subocean	110.8	100.8	93.1	92.9	93.7	93.9	91.6	97.0	107.8	112.9	106.9	113.4	121.9	128.7	130.2	133.4	131.3	130.1	136.2	139.3	135.6	133.9	130.1	130.3	128.4	139.4	145.8	146.9	150.5	146.0	-9999.0
130	Chukchi Sea	151.6	157.9	164.3	169.0	169.7	173.4	173.9	168.5	158.1	152.7	147.3	147.0	154.2	169.7	197.3	191.0	190.5	190.6	186.9	189.6	191.9	192.2	209.0	216.9	199.6	200.9	207.7	211.2	213.5	204.4	-9999.0
132	Beaufort Sea	192.5	192.9	197.4	200.9	210.1	201.8	189.9	171.6	161.4	158.9	163.1	172.3	194.1	204.9	209.1	215.1	217.8	220.1	210.9	215.0	229.6	236.0	231.3	233.1	222.9	218.1	215.7	213.1	209.5	200.9	-9999.0
134	Arctic Archipelago	137.5	139.3	136.6	139.8	135.4	139.7	124.5	121.4	121.3	128.1	135.2	137.4	145.4	147.4	157.3	166.9	165.3	169.7	184.5	184.4	182.1	178.1	184.0	181.6	177.5	167.0	159.3	152.4	151.9	153.6	-9999.0
136	Foxe Basin	147.3	139.5	138.4	145.5	150.9	148.1	158.3	136.3	112.3	115.9	125.0	130.6	139.4	141.0	146.5	152.3	153.3	152.4	176.2	194.7	194.8	183.8	183.1	179.0	181.3	189.1	191.8	189.0	179.6	183.9	-9999.0
138	Baffin Bay	100.2	104.4	89.6	90.3	96.3	97.2	88.5	97.3	101.5	101.9	108.2	115.0	108.3	112.9	114.1	111.4	106.7	116.1	118.5	120.9	135.9	139.0	147.8	152.0	153.2	155.1	158.7	157.2	152.2	127.4	-9999.0
139	South Greenland	141.9	148.4	135.0	117.0	111.0	119.0	133.7	144.2	139.0	139.4	151.7	144.4	133.1	133.2	133.4	135.6	149.5	163.6	161.7	171.5	175.8	179.4	189.9	198.5	195.2	182.7	184.3	183.8	185.9	188.5	-9999.0
140	Greenland Sea	91.3	100.3	90.9	79.0	76.2	77.2	86.9	97.6	104.2	112.0	124.0	147.0	146.0	144.0	131.5	116.9	109.7	111.1	107.9	108.1	103.5	107.2	121.8	134.0	144.4	145.8	148.8	150.0	151.8	140.7	-9999.0
142	Norwegian Sea	212.2	206.8	202.9	218.9	217.4	225.4	226.4	223.9	219.1	214.1	210.7	208.4	203.6	210.8	224.2	236.3	243.9	233.7	237.3	234.9	232.5	243.0	240.4	238.0	241.4	231.7	223.9	226.1	228.6	233.3	-9999.0
144	Barents Sea	217.2	207.4	215.3	229.6	230.2	238.1	233.0	232.6	227.6	220.4	211.9	204.9	198.7	195.8	194.4	204.1	211.4	223.0	233.6	249.6	245.7	232.5	244.0	258.0	263.0	260.4	248.7	228.8	213.3	196.1	-9999.0
146	Kara Sea	201.8	204.9	193.8	179.8	178.8	177.6	179.5	180.6	186.8	192.4	198.6	199.8	208.1	211.9	209.0	198.2	197.5	211.7	216.4	216.2	218.2	208.3	190.6	187.1	188.1	192.3	202.1	216.9	223.9	227.4	-9999.0
148	Laptev Sea	149.6	157.1	173.8	181.8	180.4	179.4	181.6	185.8	184.5	175.7	171.4	172.4	172.5	174.7	175.7	176.5	168.1	157.2	160.3	166.7	167.0	169.4	171.8	172.3	173.0	172.8	178.4	185.3	194.6	200.1	-9999.0
150	East Siberian Sea	154.9	152.9	150.9	165.2	173.3	165.7	157.1	153.7	156.4	157.9	157.6	159.5	152.2	149.0	152.3	152.8	160.9	167.7	159.0	152.0	153.1	159.4	165.8	167.5	171.6	174.3	176.2	174.5	180.0	186.9	-9999.0
152	Gulf of Alaska	211.3	205.1	207.9	222.5	210.0	198.0	192.1	190.2	188.1	185.7	183.5	213.7	216.7	220.6	220.9	220.6	211.9	206.5	208.2	206.9	213.4	216.2	223.2	227.5	226.3	217.7	215.9	218.8	231.2	228.9	-9999.0
154	Southeast Bering Sea	192.8	208.3	212.2	220.9	215.9	213.1	198.1	180.1	191.7	201.3	211.8	208.9	194.3	205.1	222.3	205.8	204.7	212.6	207.5	203.7	209.4	220.5	242.4	238.3	223.2	225.2	219.3	239.9	228.5	220.8	-9999.0