1991 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	181.7	179.5	181.1	184.7	186.2	186.8	185.8	185.2	186.0	185.5	183.5	184.8	189.1	190.8	187.9	188.9	193.9	198.4	199.0	199.2	199.2	199.0	200.5	202.1	203.6	205.2	203.5	203.8	204.2	205.8	-9999.0
34	Hudson Bay	200.4	211.1	217.6	218.4	218.2	220.8	219.1	207.8	202.6	205.3	204.5	204.3	214.4	219.4	219.3	210.4	206.6	202.6	204.6	215.1	225.3	222.7	221.5	219.7	225.9	237.3	236.7	238.5	242.7	240.6	-9999.0
36	Hudson Strait	178.2	169.5	170.6	185.3	162.5	150.7	156.5	173.1	168.2	168.7	160.3	170.2	173.3	182.0	152.5	153.0	162.7	170.7	178.3	174.8	173.6	198.3	223.7	222.5	187.4	181.0	182.3	180.5	195.8	209.7	-9999.0
98	Bering Strait	169.6	171.7	175.3	173.6	173.4	169.8	172.5	178.7	177.5	181.7	186.7	191.1	185.3	193.5	202.5	205.3	208.9	208.0	207.9	210.5	208.0	206.9	199.9	203.3	206.6	204.8	205.1	201.3	202.2	207.8	-9999.0
128	Arctic subocean	124.9	122.2	116.9	110.2	109.9	114.7	116.5	119.1	114.2	105.5	101.2	103.3	109.3	120.3	131.0	130.0	131.6	134.7	125.6	135.5	139.4	150.9	152.9	152.9	158.1	164.3	168.0	171.7	160.6	154.6	-9999.0
130	Chukchi Sea	166.0	163.6	157.4	154.9	152.5	143.1	151.3	150.8	151.3	164.1	184.9	190.2	183.0	180.9	190.9	197.7	204.8	204.6	195.7	201.7	199.9	196.0	190.1	189.6	195.0	191.1	198.0	204.1	201.4	203.6	-9999.0
132	Beaufort Sea	200.5	188.4	185.1	194.4	191.2	190.8	189.1	193.1	196.1	196.8	199.2	212.5	219.2	219.2	212.6	211.9	215.4	222.8	225.2	221.7	221.3	224.0	219.2	215.0	210.8	207.3	210.9	216.0	215.5	214.6	-9999.0
134	Arctic Archipelago	161.3	158.2	142.9	146.3	157.5	161.4	159.0	158.7	157.9	155.5	149.8	155.1	151.2	146.7	150.6	148.6	157.7	170.2	178.4	181.9	170.7	166.5	159.1	168.1	181.3	183.1	186.5	189.6	184.2	179.3	-9999.0
136	Foxe Basin	153.0	149.3	155.2	145.7	137.2	147.2	156.1	160.2	158.6	147.7	148.4	142.4	132.2	125.8	129.6	150.2	162.8	176.2	163.4	160.7	162.9	174.9	184.3	176.7	170.9	173.9	177.6	183.1	192.4	189.9	-9999.0
138	Baffin Bay	108.1	114.1	117.1	106.5	99.4	103.6	107.3	106.9	103.2	101.6	101.4	99.1	96.5	97.7	108.2	133.3	138.6	142.6	137.9	134.7	124.0	122.2	133.1	135.1	135.1	140.2	139.6	139.9	141.0	140.0	-9999.0
139	South Greenland	148.8	123.6	118.1	115.9	115.5	113.6	115.3	114.6	115.1	113.1	111.0	122.6	129.0	127.1	151.2	177.7	170.6	179.4	163.5	155.8	155.0	137.7	130.2	129.7	132.1	133.1	135.0	145.1	150.8	163.2	-9999.0
140	Greenland Sea	100.2	96.7	95.1	94.4	88.6	89.1	92.2	95.1	93.4	105.5	111.0	101.2	103.9	96.3	100.9	119.5	125.6	123.1	124.7	116.3	111.8	109.3	124.8	129.7	126.7	123.6	125.8	137.7	148.3	143.3	-9999.0
142	Norwegian Sea	203.6	223.7	228.2	225.0	225.9	238.0	231.8	230.2	229.0	238.9	246.1	248.4	229.3	218.2	223.1	214.0	189.7	189.3	188.5	192.8	202.6	213.5	210.9	215.3	218.8	217.3	221.9	223.7	220.6	222.2	-9999.0
144	Barents Sea	191.4	187.4	218.6	236.3	231.5	233.3	247.3	244.7	241.3	241.1	243.8	246.1	244.0	230.5	212.2	210.9	205.6	200.1	195.9	218.6	241.1	219.6	216.0	227.3	216.0	217.7	230.9	238.5	221.7	214.5	-9999.0
146	Kara Sea	196.1	195.9	194.4	198.9	206.1	207.9	203.4	204.6	207.3	208.3	207.8	206.0	213.0	210.4	197.0	204.2	223.4	227.9	229.2	216.3	212.4	220.1	221.9	222.5	225.5	223.8	215.3	216.3	218.2	215.9	-9999.0
148	Laptev Sea	182.8	175.3	178.6	184.0	185.2	182.1	178.1	179.3	185.3	174.5	164.3	165.2	166.3	176.2	176.7	159.4	156.6	173.4	177.5	189.2	185.1	181.7	196.7	200.2	199.6	202.6	196.5	181.6	180.8	194.9	-9999.0
150	East Siberian Sea	163.8	160.9	160.6	163.4	168.1	176.5	171.4	161.7	167.4	172.7	159.5	145.4	157.1	169.2	176.8	181.3	181.2	177.0	175.7	173.9	176.9	177.4	169.4	174.8	185.3	191.2	192.4	198.2	195.3	197.4	-9999.0
152	Gulf of Alaska	186.7	196.7	200.2	203.9	205.9	200.3	201.0	203.9	198.5	197.7	199.2	213.4	215.6	220.6	217.8	218.1	218.5	220.9	219.5	222.9	221.1	219.5	215.3	223.0	223.0	219.8	215.3	211.8	218.1	223.6	-9999.0
154	Southeast Bering Sea	197.9	204.9	204.6	196.7	198.6	191.8	201.1	204.8	201.2	187.0	185.9	192.3	201.7	225.2	217.2	219.8	212.4	218.2	225.8	223.9	227.1	223.2	217.7	216.1	223.8	225.6	223.2	223.5	224.4	224.1	-9999.0