1984 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	168.0	165.4	164.2	166.3	170.6	172.4	171.7	173.7	175.0	176.7	178.8	179.6	181.1	182.2	185.4	187.2	185.4	185.0	187.3	188.9	192.0	195.8	194.6	194.6	196.6	198.0	201.5	206.4	208.7	209.5	-9999.0
34	Hudson Bay	206.8	204.8	196.2	196.9	201.5	202.5	205.7	218.4	226.8	229.7	233.5	227.0	222.3	222.6	227.8	232.9	237.7	239.8	237.0	231.3	236.2	252.9	250.5	243.8	233.1	222.8	225.8	228.9	216.1	215.2	-9999.0
36	Hudson Strait	172.5	163.5	166.5	136.6	154.6	141.4	132.0	134.9	176.8	207.1	203.6	215.7	215.5	198.8	191.6	182.3	186.6	212.2	216.0	187.6	174.5	195.0	189.0	192.7	219.2	214.8	198.6	217.3	251.2	222.4	-9999.0
98	Bering Strait	184.3	187.4	187.9	185.7	181.7	174.0	168.0	160.8	157.0	162.5	165.3	171.5	177.2	181.0	185.8	182.0	174.2	166.1	174.0	178.8	187.5	191.4	185.8	184.0	188.1	193.2	193.0	203.0	212.3	212.5	-9999.0
128	Arctic subocean	94.7	91.4	108.0	114.2	122.3	134.6	135.8	132.4	130.3	135.6	131.7	125.5	128.2	126.1	129.0	139.3	138.9	131.0	127.0	130.8	142.6	148.9	150.2	151.6	147.1	146.2	148.3	151.7	153.4	149.6	-9999.0
130	Chukchi Sea	177.1	179.8	174.9	164.1	147.7	138.8	126.0	124.1	120.7	117.1	123.5	129.0	136.2	148.1	154.4	150.6	142.1	133.9	141.6	139.2	152.7	154.6	154.1	157.6	166.9	164.8	182.9	179.1	176.2	186.2	-9999.0
132	Beaufort Sea	207.1	197.7	198.3	201.3	196.1	189.7	191.7	197.5	201.8	204.0	204.0	201.7	202.1	210.9	232.9	237.0	217.4	202.7	215.3	224.0	231.4	225.4	212.9	202.3	197.5	201.1	203.4	205.0	214.2	219.6	-9999.0
134	Arctic Archipelago	160.7	132.0	129.8	122.9	122.5	136.7	145.4	153.5	158.2	163.8	168.3	160.3	155.5	162.3	180.6	199.3	202.7	188.8	168.2	182.5	184.3	178.7	174.0	166.4	164.4	169.0	172.9	175.7	188.9	197.7	-9999.0
136	Foxe Basin	157.6	127.6	117.7	108.0	112.1	111.3	120.4	134.5	147.4	145.7	158.8	194.4	190.7	161.5	154.4	164.3	189.7	211.4	191.6	167.2	174.0	157.8	146.8	150.6	159.7	160.6	157.0	164.5	174.6	176.3	-9999.0
138	Baffin Bay	98.6	91.9	94.3	107.7	126.2	135.7	127.0	121.1	111.7	112.7	116.7	123.1	128.9	130.0	130.2	132.5	130.4	128.6	125.7	118.1	116.7	120.7	125.5	130.9	134.2	124.4	121.7	129.8	125.9	124.1	-9999.0
139	South Greenland	116.2	129.8	132.2	138.3	151.5	136.6	134.4	125.5	120.7	126.7	124.3	128.7	141.6	145.3	135.6	138.7	139.4	136.4	136.7	136.6	131.4	128.0	134.3	159.0	187.5	182.4	169.5	153.9	143.6	153.8	-9999.0
140	Greenland Sea	90.6	100.4	117.3	111.5	134.3	147.2	138.5	132.0	130.6	126.3	124.3	136.2	136.9	130.4	117.2	110.3	112.1	106.8	119.9	135.0	149.7	146.0	134.2	137.6	159.3	157.0	147.3	151.8	140.6	127.3	-9999.0
142	Norwegian Sea	211.1	210.1	205.1	216.2	230.5	232.4	232.6	226.8	229.0	230.5	230.2	224.7	224.4	224.4	225.6	222.3	218.7	213.7	217.8	231.3	245.4	235.1	231.3	233.1	232.4	224.7	244.0	243.8	245.1	242.8	-9999.0
144	Barents Sea	212.6	217.8	205.9	206.0	210.1	210.9	192.8	192.6	168.3	184.5	177.3	179.0	192.6	208.6	209.3	210.8	232.7	230.2	202.8	182.6	182.3	197.7	219.8	227.2	221.9	210.4	206.2	221.4	225.0	222.3	-9999.0
146	Kara Sea	160.8	157.1	161.9	170.6	172.2	174.0	173.0	176.2	175.8	172.3	175.5	171.6	170.5	169.5	174.9	181.6	175.2	181.1	190.9	196.5	198.0	200.0	192.6	188.0	192.8	207.5	217.7	223.9	227.9	228.5	-9999.0
148	Laptev Sea	151.4	151.7	141.7	139.0	149.5	162.0	168.3	170.5	178.9	178.5	181.5	188.1	189.4	183.6	172.9	164.8	166.1	168.8	168.1	172.4	172.6	176.5	186.1	196.7	194.6	188.7	197.9	203.8	209.8	216.8	-9999.0
150	East Siberian Sea	139.4	142.6	146.1	152.3	153.8	156.5	154.9	146.7	141.3	140.7	145.7	154.2	164.1	173.2	182.8	175.8	170.6	162.4	175.5	177.5	188.9	194.5	203.4	202.0	208.4	205.8	193.1	202.1	206.1	194.7	-9999.0
152	Gulf of Alaska	206.6	208.7	209.2	211.6	212.0	204.6	196.3	193.1	192.2	200.9	202.7	208.8	210.9	207.8	205.9	199.1	195.2	194.3	199.6	212.1	217.8	204.0	188.0	191.3	195.2	202.5	222.3	229.2	222.8	225.8	-9999.0
154	Southeast Bering Sea	218.6	209.8	207.6	206.1	218.1	211.5	201.2	180.5	172.7	157.7	168.0	174.9	179.4	186.2	182.7	178.2	166.1	167.7	183.2	182.8	190.3	195.5	184.2	183.0	189.6	216.9	240.7	234.2	239.7	227.6	-9999.0