1972 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	169.5	165.9	166.2	169.3	173.6	178.3	179.7	181.6	183.1	183.7	182.8	181.1	179.9	177.6	177.9	179.3	178.6	183.1	188.4	191.4	192.3	194.1	195.4	197.6	201.1	203.1	202.7	200.3	201.2	205.9	-9999.0
34	Hudson Bay	195.6	187.9	172.2	163.6	170.8	182.1	183.4	192.7	199.0	196.8	193.2	197.2	201.7	205.1	212.2	207.4	198.5	194.4	197.4	212.5	211.8	206.4	201.8	201.4	213.0	223.9	228.2	231.3	234.8	233.8	-9999.0
36	Hudson Strait	196.5	191.4	179.7	200.9	207.1	198.9	185.2	177.4	175.2	174.0	184.4	186.1	178.9	181.7	179.4	188.8	176.4	169.5	168.2	168.3	169.6	184.7	178.4	175.1	182.9	185.7	186.2	203.9	189.0	154.7	-9999.0
98	Bering Strait	146.8	155.4	168.3	167.2	162.1	163.8	165.1	167.6	172.1	174.7	173.0	173.6	176.7	162.9	158.9	159.9	171.5	186.2	173.5	161.1	157.0	163.0	169.3	183.8	191.1	190.1	189.4	188.0	189.4	194.5	-9999.0
128	Arctic subocean	120.4	122.7	128.2	113.2	115.1	119.2	120.2	121.2	129.0	129.4	118.4	109.9	114.7	120.1	116.2	111.6	116.6	120.6	129.4	134.4	126.7	140.7	141.8	140.5	134.4	137.7	137.2	142.1	149.9	145.4	-9999.0
130	Chukchi Sea	155.3	160.3	181.1	162.3	143.5	142.4	151.2	159.8	176.0	177.0	169.4	164.8	157.2	147.3	146.4	148.3	153.7	160.1	159.8	156.9	151.7	158.8	170.7	168.6	174.1	169.7	175.5	182.4	185.6	192.8	-9999.0
132	Beaufort Sea	164.0	144.0	143.0	160.5	176.8	187.6	184.8	180.8	178.4	176.7	181.4	186.2	190.1	195.1	185.4	171.3	169.0	180.4	197.6	180.2	167.4	174.2	177.9	197.9	208.9	201.2	202.6	209.6	214.2	207.6	-9999.0
134	Arctic Archipelago	125.9	119.0	127.0	132.9	136.3	143.4	158.6	163.9	156.2	154.0	156.1	152.7	148.2	147.5	144.6	139.7	139.2	137.5	142.2	152.2	149.9	149.5	147.4	151.4	155.6	166.5	151.5	144.2	151.8	163.0	-9999.0
136	Foxe Basin	165.6	132.1	143.0	160.7	171.3	171.9	165.4	164.4	166.6	152.0	152.7	155.0	162.2	158.9	157.9	158.1	155.6	147.8	143.6	154.8	166.3	162.7	164.6	161.9	163.9	167.8	194.3	173.3	141.5	159.2	-9999.0
138	Baffin Bay	113.1	117.8	109.7	99.8	96.5	94.6	100.0	101.9	102.9	107.5	104.9	98.3	97.6	97.6	101.2	106.8	116.3	135.4	144.9	140.9	130.7	144.4	157.0	152.6	146.5	144.7	147.5	152.2	153.4	162.1	-9999.0
139	South Greenland	126.4	127.7	125.1	118.9	116.8	117.5	117.8	113.4	118.2	121.7	121.6	119.9	134.1	133.4	137.1	142.1	157.6	177.6	172.4	171.0	193.8	196.0	191.3	179.1	174.4	168.0	163.4	164.1	170.7	176.7	-9999.0
140	Greenland Sea	103.2	106.4	110.7	107.1	100.7	92.9	99.9	115.3	124.9	113.1	103.0	98.6	93.1	94.1	91.4	100.2	107.3	133.4	144.8	146.7	139.6	139.5	153.4	155.8	146.1	140.6	142.5	140.4	146.0	153.2	-9999.0
142	Norwegian Sea	192.9	205.2	219.1	220.7	225.1	226.4	224.2	224.1	220.9	219.2	221.9	226.9	227.9	229.6	230.2	229.4	223.4	217.9	218.6	230.7	221.3	217.4	205.5	203.2	230.2	217.9	208.6	203.9	213.9	225.6	-9999.0
144	Barents Sea	212.5	207.3	208.2	206.8	204.7	210.8	215.7	217.8	214.7	211.3	202.7	207.9	216.6	223.7	220.7	190.7	201.1	209.3	210.9	200.4	212.7	213.7	213.8	201.4	200.1	188.3	203.7	224.5	221.3	201.4	-9999.0
146	Kara Sea	193.5	192.2	196.4	201.2	201.2	201.6	206.1	210.0	212.5	213.9	207.5	197.0	191.7	186.0	189.1	197.2	186.7	186.7	199.6	216.1	219.0	216.7	225.5	231.8	232.4	246.2	233.1	216.5	218.2	234.0	-9999.0
148	Laptev Sea	159.3	155.8	154.8	162.3	174.2	183.1	179.3	178.4	176.8	183.8	195.9	193.3	181.2	174.3	174.5	180.8	186.4	194.6	197.8	191.9	197.1	201.4	188.7	186.2	193.8	183.3	196.8	190.2	180.1	187.4	-9999.0
150	East Siberian Sea	132.2	132.1	131.9	148.0	167.7	179.5	174.4	161.8	158.4	156.5	153.9	163.0	172.5	174.0	169.9	184.5	186.5	184.5	187.5	181.4	174.4	182.6	189.6	179.9	173.6	169.6	174.2	190.8	202.1	201.7	-9999.0
152	Gulf of Alaska	161.4	176.8	192.3	192.4	185.9	180.3	178.1	181.0	181.8	185.8	185.9	195.5	196.6	175.1	170.1	179.8	203.1	208.6	182.0	183.4	181.7	183.0	185.9	203.8	202.6	199.8	202.6	199.6	196.9	203.3	-9999.0
154	Southeast Bering Sea	187.1	184.4	206.7	191.1	168.0	158.4	162.6	170.1	195.6	198.7	189.4	203.4	177.3	173.0	166.1	197.5	211.0	201.6	180.6	170.2	175.8	196.2	204.5	205.8	204.1	199.8	189.8	198.7	214.5	220.0	-9999.0