1960 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	166.5	169.7	173.6	174.2	173.4	172.8	170.9	171.5	173.6	177.2	177.2	175.9	178.2	181.4	185.2	188.3	188.5	189.3	190.6	192.3	193.0	192.7	194.8	195.7	195.5	195.3	194.1	193.7	193.1	196.7	-9999.0
34	Hudson Bay	186.5	200.3	213.1	204.2	201.6	196.6	186.7	174.5	178.8	200.0	208.8	197.3	194.8	208.1	211.1	206.2	197.0	199.3	211.5	223.9	225.8	223.6	218.0	211.7	206.4	207.4	207.3	206.0	205.1	214.0	-9999.0
36	Hudson Strait	147.2	160.6	175.4	197.8	198.8	189.5	166.7	153.9	144.5	130.8	128.8	158.3	148.8	144.0	174.4	186.0	200.4	160.4	166.5	158.3	172.1	182.9	190.1	183.6	181.1	199.4	212.7	217.2	210.4	214.6	-9999.0
98	Bering Strait	155.5	156.1	159.2	160.4	154.1	170.1	180.4	192.6	179.6	174.3	172.6	174.4	173.7	175.4	170.1	171.3	167.2	166.2	173.2	171.1	172.1	175.8	207.5	202.7	195.8	194.2	199.3	208.6	210.1	213.9	-9999.0
128	Arctic subocean	119.2	116.0	110.2	104.1	100.3	101.5	104.4	100.5	100.7	120.5	135.3	132.7	130.8	123.5	119.0	122.2	121.3	128.5	121.9	121.2	131.3	134.6	138.2	145.6	154.8	155.5	160.8	170.7	169.0	162.7	-9999.0
130	Chukchi Sea	144.5	142.9	132.6	129.1	130.9	148.3	163.7	172.1	164.2	157.8	153.6	149.0	148.9	160.0	157.9	152.4	140.4	146.5	149.0	146.6	146.0	150.6	177.3	184.8	162.0	161.5	170.1	189.5	202.8	214.7	-9999.0
132	Beaufort Sea	170.2	179.8	184.4	198.2	197.8	174.6	178.4	204.9	222.6	209.5	191.8	189.7	195.0	186.4	179.1	180.2	188.0	196.1	199.8	204.8	210.2	202.2	209.3	221.3	220.6	216.8	215.7	211.7	215.5	222.5	-9999.0
134	Arctic Archipelago	136.6	149.9	156.4	157.1	163.6	151.4	134.0	135.5	144.3	145.4	129.8	128.1	131.8	130.9	131.4	143.0	147.7	155.1	165.6	170.4	170.1	165.4	166.3	186.1	200.5	188.3	174.1	172.3	179.0	182.2	-9999.0
136	Foxe Basin	127.4	136.1	147.3	152.8	155.1	152.2	135.1	127.1	126.5	119.9	123.0	124.8	124.9	127.8	125.7	124.2	135.0	140.5	150.4	173.0	169.3	154.9	162.7	167.9	170.3	173.7	177.1	185.4	180.7	190.8	-9999.0
138	Baffin Bay	119.8	107.3	102.4	110.4	103.3	98.4	95.6	101.6	114.4	118.4	121.7	119.3	118.5	117.3	126.6	127.8	111.1	106.6	97.6	100.1	101.9	110.1	113.5	118.8	121.6	123.8	128.9	145.6	158.8	158.6	-9999.0
139	South Greenland	158.4	146.5	135.4	128.8	136.3	140.1	137.3	150.3	149.3	146.1	137.7	135.0	135.3	137.9	144.9	143.8	137.8	142.3	136.6	143.3	135.0	142.3	132.1	125.6	127.6	143.4	154.1	162.5	169.0	172.7	-9999.0
140	Greenland Sea	135.3	109.5	102.9	94.6	92.8	98.4	97.4	101.3	128.6	147.2	143.0	141.4	129.8	122.1	116.4	118.3	123.7	121.8	106.4	100.5	107.5	119.5	118.0	124.9	138.2	139.5	143.9	156.0	155.2	151.8	-9999.0
142	Norwegian Sea	210.7	205.8	201.6	202.0	217.7	238.9	237.5	233.1	235.0	229.4	217.7	225.1	228.9	231.2	230.6	221.8	215.2	236.5	235.3	237.1	232.6	219.3	214.6	224.4	224.4	223.7	219.5	222.3	226.8	218.6	-9999.0
144	Barents Sea	178.2	182.7	181.4	171.3	178.5	203.5	220.3	220.6	216.5	213.4	220.2	228.0	232.4	229.4	241.4	250.2	238.2	226.8	223.5	229.1	228.5	220.2	227.5	227.4	215.3	205.0	195.9	203.7	211.9	223.6	-9999.0
146	Kara Sea	177.9	185.0	194.6	196.6	191.5	181.3	177.0	177.5	183.9	190.4	192.4	186.9	189.6	195.1	205.5	214.8	220.1	219.3	215.0	210.0	208.7	207.4	207.3	212.2	216.7	216.9	212.3	200.9	190.1	191.2	-9999.0
148	Laptev Sea	157.3	151.1	148.3	154.1	158.2	173.0	172.9	160.6	150.4	151.1	149.6	152.9	166.1	175.7	177.4	178.4	181.2	186.3	189.3	191.4	191.5	192.2	192.0	188.4	188.2	186.2	181.8	179.2	179.7	180.6	-9999.0
150	East Siberian Sea	166.1	167.1	165.8	158.8	150.0	155.3	162.9	168.0	167.8	173.1	184.6	191.4	184.2	174.5	169.4	168.2	169.4	173.1	175.8	176.2	178.9	178.6	172.0	165.1	159.0	162.9	169.5	185.7	192.0	192.2	-9999.0
152	Gulf of Alaska	186.0	189.0	191.0	190.6	192.0	208.8	212.7	217.0	191.1	184.6	193.1	210.0	205.3	204.6	203.6	200.5	195.4	196.3	197.2	194.8	195.5	205.4	230.7	223.0	219.0	220.4	216.2	221.9	228.4	230.0	-9999.0
154	Southeast Bering Sea	158.5	152.2	150.8	146.6	160.8	180.9	166.3	169.0	163.3	174.2	187.8	190.6	196.7	204.6	201.0	203.5	198.5	179.1	174.0	170.5	179.5	212.3	233.9	199.5	180.4	180.8	201.7	217.3	226.5	242.3	-9999.0