1998 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	177.5	181.6	183.7	184.5	182.2	180.8	182.1	183.3	185.4	189.1	192.8	192.4	191.4	189.6	190.5	190.9	189.5	189.7	188.1	189.4	190.6	191.7	193.7	194.6	194.4	195.0	197.9	200.4	201.3	201.6	-9999.0
34	Hudson Bay	205.2	205.6	210.0	212.8	206.6	197.7	197.9	194.1	197.4	201.9	212.4	226.7	227.8	215.3	208.2	206.3	210.1	213.4	214.1	218.6	225.3	232.4	233.1	225.8	218.0	223.0	237.8	246.2	247.6	240.4	-9999.0
36	Hudson Strait	158.4	163.1	182.0	184.0	179.5	192.1	201.7	193.2	180.8	172.5	167.1	183.8	204.2	228.5	219.6	213.0	211.5	219.5	198.8	179.4	182.5	174.9	179.2	193.2	196.4	190.7	187.1	209.6	217.5	193.1	-9999.0
98	Bering Strait	176.6	178.2	183.0	192.8	184.8	184.9	188.7	185.6	188.5	195.7	196.2	194.0	193.6	199.7	204.4	200.4	200.4	210.3	203.9	202.4	199.5	202.9	210.2	210.7	203.4	190.3	192.7	196.1	191.9	190.0	-9999.0
128	Arctic subocean	134.9	150.6	136.9	137.7	143.0	147.8	148.1	146.8	146.3	144.5	147.3	152.9	150.5	153.4	150.3	144.6	141.7	137.8	133.2	151.1	161.0	161.2	157.4	154.3	153.6	150.9	158.0	157.3	149.6	150.3	-9999.0
130	Chukchi Sea	182.2	182.8	191.4	199.9	186.7	172.2	177.0	180.4	184.2	207.9	206.2	197.4	192.5	197.2	199.6	192.0	189.2	187.2	188.4	184.7	189.9	206.0	208.1	196.8	188.4	182.4	202.7	184.6	173.9	163.0	-9999.0
132	Beaufort Sea	185.7	192.6	198.0	199.2	200.7	205.1	211.0	210.8	205.7	198.9	197.4	197.2	197.1	201.1	213.1	220.8	225.3	232.6	229.0	222.0	220.7	219.0	220.8	227.3	219.8	211.4	211.0	219.5	224.2	223.2	-9999.0
134	Arctic Archipelago	149.2	153.0	156.7	157.9	156.8	163.0	158.6	155.8	168.5	175.5	178.4	171.1	171.3	171.7	169.1	181.9	195.7	196.1	200.0	198.7	195.2	192.2	183.6	188.5	191.4	197.7	190.3	179.6	179.2	184.9	-9999.0
136	Foxe Basin	139.3	141.0	149.9	148.7	146.5	166.0	175.1	186.6	180.2	167.8	162.2	162.1	174.3	166.1	160.5	157.8	162.8	169.9	158.6	166.1	157.6	147.1	151.3	157.8	167.5	182.4	204.3	205.1	189.5	195.0	-9999.0
138	Baffin Bay	145.7	161.1	141.0	130.9	122.1	118.3	125.9	148.8	169.0	168.9	182.2	180.2	172.3	159.1	141.2	118.3	115.6	113.9	126.0	142.7	150.5	152.5	151.6	152.4	153.0	149.1	134.3	132.5	151.8	168.7	-9999.0
139	South Greenland	172.0	171.9	169.0	152.4	146.9	142.8	149.4	169.9	180.8	190.8	190.8	194.8	197.2	184.2	177.5	160.6	136.8	141.6	162.4	165.5	161.4	152.2	159.0	152.9	160.2	167.4	159.9	156.7	163.6	169.6	-9999.0
140	Greenland Sea	142.1	174.4	159.5	134.1	123.7	121.7	122.5	123.4	131.9	132.5	135.3	152.3	158.3	159.5	156.2	130.9	118.7	120.3	136.6	153.4	150.3	154.2	148.4	137.8	132.7	147.9	148.2	137.4	130.1	148.2	-9999.0
142	Norwegian Sea	200.7	190.1	187.4	198.1	195.5	194.9	191.9	186.4	186.3	186.5	186.3	195.0	195.5	197.3	200.2	208.6	219.3	215.8	215.8	221.5	220.5	226.0	229.0	242.4	247.1	244.4	239.5	239.8	249.2	241.9	-9999.0
144	Barents Sea	155.5	159.3	171.2	177.0	188.2	190.6	186.5	187.9	183.0	178.2	175.8	170.7	171.6	173.1	173.3	179.1	177.6	173.9	194.3	213.9	225.4	220.4	216.2	217.5	216.6	217.4	228.0	215.4	199.6	201.2	-9999.0
146	Kara Sea	196.3	201.8	196.2	189.2	189.6	194.0	191.6	193.0	198.1	206.1	209.9	200.3	190.8	190.5	197.8	200.7	193.9	191.2	181.0	179.6	181.6	186.1	189.5	190.4	195.5	198.7	202.5	212.7	214.9	212.8	-9999.0
148	Laptev Sea	160.0	162.5	174.1	191.7	184.6	168.6	176.2	175.8	169.9	172.1	181.1	182.2	185.4	181.7	181.7	187.8	186.9	179.5	177.2	177.5	173.6	173.0	175.9	177.1	177.9	180.7	180.0	176.3	180.3	187.1	-9999.0
150	East Siberian Sea	138.4	137.2	140.8	147.2	151.2	154.4	150.2	150.4	152.1	153.5	154.9	157.9	160.4	161.5	158.6	157.1	167.3	171.8	165.1	165.1	166.4	161.6	168.7	182.5	179.8	168.2	166.8	169.5	164.1	157.6	-9999.0
152	Gulf of Alaska	207.3	199.0	210.5	214.2	206.1	213.4	209.3	205.0	201.3	208.8	207.5	201.1	206.3	219.3	224.8	223.3	225.7	223.9	216.8	212.6	207.6	209.0	211.5	217.5	220.5	212.2	219.1	215.9	211.8	220.6	-9999.0
154	Southeast Bering Sea	203.8	203.2	220.0	206.6	204.5	194.8	190.6	199.8	209.0	223.7	205.3	203.1	222.7	223.2	218.6	216.9	217.7	221.8	220.0	213.1	213.6	219.0	222.4	221.6	224.9	215.3	224.7	194.8	190.1	209.4	-9999.0