1961 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	177.2	175.9	175.8	173.1	172.3	171.7	173.4	176.2	177.6	176.6	174.6	174.3	174.9	177.0	178.6	182.9	185.5	186.3	188.2	190.9	193.4	195.3	196.4	197.4	195.9	193.8	193.8	196.3	198.7	200.0	-9999.0
34	Hudson Bay	179.7	201.8	202.9	195.9	187.3	184.6	179.7	187.1	199.5	186.4	178.8	187.9	204.0	202.4	196.7	199.8	208.5	216.7	226.6	236.5	233.0	221.0	208.9	208.8	213.5	209.0	206.2	203.3	205.4	206.2	-9999.0
36	Hudson Strait	200.7	198.6	202.2	211.5	213.4	202.1	194.0	189.2	178.3	176.4	175.3	183.5	191.4	194.4	188.1	180.3	182.4	190.8	198.9	201.1	191.0	199.2	213.5	215.7	204.7	204.6	202.6	207.7	210.7	211.5	-9999.0
98	Bering Strait	182.2	170.3	165.3	160.5	162.5	177.5	175.0	158.8	166.4	178.3	168.6	164.9	156.0	160.6	172.9	174.8	163.7	165.9	167.7	160.8	164.7	190.9	201.4	203.7	210.1	211.6	207.7	206.6	196.7	195.1	-9999.0
128	Arctic subocean	109.6	104.5	118.8	120.4	124.1	118.3	110.5	106.4	111.5	113.1	113.7	122.5	128.2	141.7	133.9	126.7	130.5	146.5	161.5	161.4	155.1	143.2	140.3	148.3	154.2	156.7	167.2	172.1	156.3	146.6	-9999.0
130	Chukchi Sea	180.8	163.8	149.7	138.6	134.5	149.7	156.6	151.3	162.3	161.4	172.0	170.7	152.3	148.0	149.7	149.5	154.3	158.6	142.3	140.9	155.4	184.8	176.7	204.5	192.5	179.2	178.4	184.7	187.5	201.3	-9999.0
132	Beaufort Sea	197.1	184.4	177.6	172.7	168.7	170.1	180.2	178.3	148.9	149.7	157.4	162.8	149.6	148.1	168.6	195.4	204.8	195.0	194.2	188.0	181.9	186.7	204.6	211.7	205.6	206.1	204.8	205.2	202.7	199.7	-9999.0
134	Arctic Archipelago	128.0	129.5	122.7	125.7	130.6	125.7	127.9	133.6	130.5	130.1	133.2	138.3	134.9	141.1	147.5	161.3	181.0	183.3	190.6	195.4	189.6	181.2	180.9	178.7	173.5	172.9	180.4	194.0	193.1	179.9	-9999.0
136	Foxe Basin	163.0	166.8	153.0	137.2	137.9	152.4	167.7	152.4	154.0	160.3	158.6	168.2	155.7	166.3	182.9	186.8	188.8	188.8	181.9	177.7	184.4	198.6	208.3	206.2	187.4	185.2	193.8	196.8	195.4	192.0	-9999.0
138	Baffin Bay	99.2	123.4	144.5	129.9	103.7	100.1	105.8	116.1	123.9	112.2	103.9	102.4	107.9	119.1	121.2	118.7	119.1	137.2	150.3	140.3	136.9	135.4	135.7	151.4	163.1	163.3	165.9	164.9	166.0	161.3	-9999.0
139	South Greenland	149.3	150.4	155.2	156.0	147.8	121.4	130.4	151.0	158.3	159.2	155.0	143.5	138.1	130.5	124.2	122.8	130.2	132.4	138.3	143.1	162.0	168.8	175.5	184.0	181.7	181.9	178.4	176.0	183.0	185.7	-9999.0
140	Greenland Sea	100.3	102.2	117.0	116.7	124.0	120.7	114.0	103.7	100.3	102.8	92.9	91.9	93.7	117.4	121.0	120.0	105.5	112.4	132.0	133.8	130.8	128.9	127.8	134.1	148.0	149.3	155.2	155.8	148.4	149.4	-9999.0
142	Norwegian Sea	196.4	197.2	195.2	197.7	195.0	201.1	208.3	202.3	200.5	200.3	203.5	212.9	222.9	225.5	224.2	226.3	230.1	220.6	203.3	211.3	224.6	226.0	225.3	235.3	244.6	243.3	222.2	219.8	229.3	219.8	-9999.0
144	Barents Sea	208.7	206.7	206.9	200.8	198.2	197.4	200.6	200.7	198.8	196.0	194.8	187.5	186.5	191.5	199.1	206.7	205.2	202.1	210.6	198.3	176.5	178.2	194.3	186.8	197.3	208.4	200.8	187.3	187.2	189.6	-9999.0
146	Kara Sea	211.6	205.0	206.6	202.7	201.9	199.9	199.1	199.0	203.0	205.8	206.4	205.1	205.1	205.8	204.6	207.6	206.5	198.3	195.0	206.5	215.7	215.7	207.4	202.1	202.2	201.8	200.9	207.1	216.1	225.7	-9999.0
148	Laptev Sea	152.9	143.8	140.5	142.3	146.3	151.2	161.3	174.9	175.1	170.8	167.3	164.4	163.3	165.0	163.8	166.5	174.4	184.7	182.5	180.3	187.2	192.1	203.3	202.3	183.6	170.4	172.9	177.5	180.2	178.9	-9999.0
150	East Siberian Sea	128.9	132.9	135.6	139.9	151.8	156.4	154.6	152.5	156.7	167.8	162.8	156.0	165.9	177.9	175.2	170.3	158.4	155.4	159.7	159.6	161.1	159.8	156.4	170.8	180.2	184.4	195.4	206.4	205.4	201.0	-9999.0
152	Gulf of Alaska	210.1	202.5	190.1	192.9	203.5	214.5	208.7	195.9	211.5	206.8	194.8	185.1	182.5	187.5	205.7	199.9	182.9	193.0	192.4	185.7	189.2	216.8	234.5	238.0	237.4	231.2	227.8	221.1	215.7	210.1	-9999.0
154	Southeast Bering Sea	199.2	187.3	185.7	190.0	215.1	211.0	182.0	202.9	219.3	198.1	203.4	198.7	199.5	180.4	169.5	167.5	186.5	197.1	174.6	172.6	212.3	245.5	228.8	237.4	219.2	200.0	202.3	213.9	217.8	210.2	-9999.0