1997 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	172.5	177.4	178.3	180.3	179.9	179.2	181.5	181.1	181.6	186.2	192.3	193.5	192.6	193.2	193.7	196.6	198.3	202.3	204.3	204.7	207.5	209.8	209.0	207.4	208.9	208.3	207.7	206.6	203.8	200.8	-9999.0
34	Hudson Bay	200.3	201.8	207.0	199.6	189.3	180.4	167.4	157.3	162.9	168.5	176.1	179.3	180.9	184.6	184.8	196.4	210.9	225.2	225.4	225.7	223.2	224.3	220.3	219.4	221.2	220.2	221.1	219.8	212.2	204.0	-9999.0
36	Hudson Strait	151.6	144.0	151.4	180.0	166.8	141.6	163.4	153.7	143.3	152.3	152.7	148.1	144.7	147.0	160.8	174.1	166.0	197.8	227.0	220.0	216.9	210.3	192.0	187.1	193.6	197.2	204.1	209.4	212.5	210.7	-9999.0
98	Bering Strait	162.1	168.5	168.5	190.1	196.4	202.4	200.3	198.9	201.6	204.7	200.8	197.7	194.0	183.2	176.8	185.6	178.7	174.5	172.9	170.7	182.4	193.1	194.6	201.8	209.5	219.1	217.6	215.3	215.6	214.4	-9999.0
128	Arctic subocean	102.4	97.4	98.1	96.7	100.9	105.8	114.2	124.2	148.5	154.4	139.6	138.2	140.3	135.2	129.2	123.4	140.7	153.5	149.1	142.3	168.9	165.1	150.4	158.4	152.3	157.5	158.7	159.6	143.3	135.8	-9999.0
130	Chukchi Sea	132.3	141.9	171.8	201.0	200.3	201.7	205.3	197.7	202.0	204.9	204.1	195.7	190.9	157.3	177.4	164.6	169.2	170.8	173.9	168.7	177.3	184.8	186.7	189.3	205.2	219.1	211.8	209.3	207.3	204.0	-9999.0
132	Beaufort Sea	164.6	184.6	179.0	162.6	161.5	166.9	174.3	182.4	190.5	190.2	188.0	187.6	182.3	174.9	191.3	208.4	205.2	196.1	186.7	185.8	199.8	205.6	207.9	208.1	210.0	219.6	222.6	203.1	201.3	205.9	-9999.0
134	Arctic Archipelago	119.4	118.5	117.6	115.4	119.8	128.3	146.2	158.8	152.3	161.9	160.4	149.9	142.8	139.8	151.9	168.6	185.9	189.3	193.1	193.5	183.7	190.4	195.5	191.2	176.6	168.9	165.0	166.4	166.5	163.0	-9999.0
136	Foxe Basin	119.8	128.1	113.9	114.0	111.9	110.8	116.0	119.6	121.6	120.0	128.4	132.1	128.1	131.6	146.3	160.1	160.6	168.3	200.5	209.4	214.0	196.9	186.9	200.4	202.0	193.0	180.2	175.7	169.9	171.0	-9999.0
138	Baffin Bay	84.3	83.1	79.1	85.2	81.3	82.3	91.3	100.2	121.1	119.7	112.2	115.0	122.2	139.1	109.8	118.5	143.9	161.2	146.9	145.0	162.1	154.8	134.7	139.8	137.8	140.0	143.9	142.1	132.7	130.8	-9999.0
139	South Greenland	108.9	106.1	109.3	122.0	128.0	133.9	127.7	118.7	122.5	153.6	185.6	165.1	183.9	186.3	163.0	179.9	191.5	187.8	171.6	162.5	155.9	157.6	153.7	152.9	159.6	164.8	163.2	156.8	151.0	156.5	-9999.0
140	Greenland Sea	107.9	93.3	85.7	89.0	86.6	93.5	117.3	136.7	151.3	143.8	143.9	124.2	130.9	156.8	136.1	112.9	132.7	157.4	149.2	133.8	131.6	156.9	137.3	133.9	131.8	132.8	131.2	138.1	136.8	133.6	-9999.0
142	Norwegian Sea	214.3	208.2	201.2	190.9	182.4	186.4	192.3	204.7	219.4	215.9	199.0	212.3	220.9	197.8	211.9	232.5	203.5	200.8	196.5	208.8	215.5	204.5	201.7	204.6	199.4	204.1	208.1	209.6	213.0	211.4	-9999.0
144	Barents Sea	206.0	208.7	203.1	215.9	219.9	209.7	195.5	184.6	176.4	179.9	187.1	187.9	183.4	195.6	217.1	228.7	225.5	223.0	225.5	217.1	207.9	204.0	209.9	220.4	216.3	206.3	201.6	206.8	211.1	214.1	-9999.0
146	Kara Sea	201.2	203.8	207.6	210.0	208.6	208.6	212.9	217.8	220.5	218.2	227.4	230.7	223.7	222.5	219.7	216.2	219.4	226.7	233.4	235.7	238.6	239.1	235.8	233.1	246.2	240.6	238.9	240.9	231.0	224.3	-9999.0
148	Laptev Sea	171.7	186.8	184.4	185.6	190.0	187.9	195.8	186.0	171.6	185.0	189.1	198.9	208.5	210.3	208.9	197.1	184.7	187.4	197.0	200.4	204.5	212.8	216.3	200.1	186.3	192.0	194.3	195.9	205.5	200.9	-9999.0
150	East Siberian Sea	157.4	158.6	158.9	158.7	160.1	160.1	160.1	166.4	164.1	170.2	193.4	199.4	189.5	191.7	204.9	203.3	189.1	170.6	170.2	186.0	191.6	179.1	192.6	203.4	192.6	177.4	176.3	176.8	177.5	182.2	-9999.0
152	Gulf of Alaska	196.0	202.2	184.8	199.0	209.7	218.0	215.2	213.9	206.6	200.6	201.4	205.5	210.2	204.5	202.6	203.3	191.9	188.0	184.8	184.5	199.2	213.7	219.7	218.1	230.2	232.2	224.8	215.1	220.8	213.6	-9999.0
154	Southeast Bering Sea	157.8	168.7	203.2	216.8	222.8	224.0	226.2	220.2	222.6	228.8	207.3	216.8	208.6	205.0	186.6	185.5	185.8	196.5	194.6	188.4	190.0	195.5	214.1	227.4	240.2	241.3	227.9	225.9	224.7	225.4	-9999.0