1971 04 - daily  - mean of NCEP mean Daily Cloud Forcing Net 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	26.1	27.0	27.1	27.6	27.1	27.5	26.0	27.9	28.4	31.1	31.2	28.9	26.6	26.7	27.2	29.0	28.0	27.1	27.0	23.5	24.5	24.1	25.1	24.8	25.8	23.9	22.6	24.9	23.7	21.9	-9999.0
34	Hudson Bay	31.5	31.3	31.8	25.7	21.7	25.8	26.1	32.9	23.6	28.5	33.3	28.9	20.6	20.2	24.7	34.8	26.4	24.5	24.3	20.8	20.9	21.5	21.7	24.7	28.8	23.1	19.8	23.5	19.6	16.0	-9999.0
36	Hudson Strait	45.9	28.7	41.8	27.9	46.3	42.8	32.1	19.6	44.7	24.1	23.6	38.4	32.4	22.8	21.1	16.1	22.8	18.7	24.2	23.0	25.5	44.2	38.6	49.2	32.9	24.0	19.3	16.4	16.2	15.8	-9999.0
98	Bering Strait	20.7	18.8	20.3	31.4	31.5	32.1	37.2	30.1	27.2	38.2	38.1	38.9	39.6	43.0	42.8	32.7	35.3	32.5	31.1	27.6	18.6	19.9	26.8	31.4	26.5	28.4	28.9	26.8	31.9	23.5	-9999.0
128	Arctic subocean	24.2	21.5	20.3	13.9	18.8	31.2	34.9	38.9	32.5	22.5	18.5	15.3	8.8	10.6	17.5	15.5	16.1	16.7	16.7	22.7	13.6	14.3	11.9	16.2	25.2	21.5	23.0	23.2	23.5	23.1	-9999.0
130	Chukchi Sea	4.3	12.3	6.6	6.7	23.2	28.0	12.8	9.8	26.8	20.8	10.1	16.6	43.4	35.7	49.0	33.2	38.1	35.9	30.5	29.4	24.7	24.6	17.4	13.3	15.8	14.6	38.9	21.8	15.5	16.8	-9999.0
132	Beaufort Sea	26.9	31.1	23.3	32.8	27.3	35.5	42.0	34.2	29.7	38.7	33.7	27.7	26.3	26.0	33.8	26.6	27.6	20.7	17.8	18.5	31.9	15.0	19.6	18.4	14.6	17.8	24.1	29.4	29.2	23.2	-9999.0
134	Arctic Archipelago	31.9	28.2	29.6	26.2	24.6	32.7	31.6	29.2	22.1	20.1	17.7	25.7	21.3	22.5	25.1	32.0	35.5	38.9	25.9	12.2	18.8	30.2	13.7	7.4	12.1	14.6	30.2	24.3	21.6	14.9	-9999.0
136	Foxe Basin	26.9	24.3	14.8	32.5	46.3	50.4	47.0	39.2	47.2	45.4	29.0	20.1	32.9	39.5	50.9	26.2	35.4	36.6	32.4	17.7	20.3	17.7	9.3	14.0	13.0	7.1	13.7	17.5	11.5	9.3	-9999.0
138	Baffin Bay	20.5	21.4	14.2	17.2	14.8	10.8	10.8	15.8	15.8	11.2	9.4	12.6	15.7	13.2	17.7	14.2	9.4	12.3	14.8	7.7	5.1	3.9	5.4	8.0	10.2	8.5	16.1	24.6	24.6	24.1	-9999.0
139	South Greenland	19.0	21.5	33.5	32.7	23.9	16.4	20.2	19.6	20.1	23.2	25.3	21.0	22.0	19.3	21.8	23.6	21.2	20.5	16.3	9.9	13.1	17.1	26.1	24.2	26.5	33.2	24.6	16.0	17.0	17.0	-9999.0
140	Greenland Sea	10.7	8.3	12.5	28.5	34.1	26.8	22.4	16.6	13.7	13.0	15.9	8.5	8.1	11.7	13.3	19.4	41.6	31.1	11.9	9.5	16.4	7.8	3.7	6.1	9.6	11.4	10.2	9.8	15.5	14.5	-9999.0
142	Norwegian Sea	32.3	44.2	17.5	32.5	27.8	24.9	30.7	34.0	36.4	36.7	52.2	33.5	26.7	46.5	47.4	50.4	41.6	45.0	39.0	31.2	27.8	24.3	23.1	17.2	15.5	38.4	36.8	29.5	19.7	34.2	-9999.0
144	Barents Sea	42.0	20.5	36.2	27.5	30.2	25.5	16.7	34.7	38.3	41.8	30.3	36.5	41.4	35.8	24.5	24.4	27.0	32.6	38.6	36.8	36.6	21.2	30.2	28.3	23.1	22.5	29.4	36.5	29.8	36.3	-9999.0
146	Kara Sea	24.9	30.7	28.8	27.6	31.5	30.7	24.3	27.9	32.1	31.6	34.0	29.6	27.1	27.2	26.3	26.9	25.2	26.4	25.5	23.4	22.5	25.2	25.6	25.8	28.6	26.2	24.2	26.0	23.7	23.0	-9999.0
148	Laptev Sea	25.7	28.0	25.7	25.8	23.4	20.7	21.1	25.5	27.8	32.6	31.4	29.0	26.5	28.3	28.1	40.0	33.9	32.7	42.8	38.8	36.0	33.9	33.2	27.5	29.3	27.2	16.6	23.4	26.9	24.2	-9999.0
150	East Siberian Sea	17.9	16.6	21.8	28.0	21.5	22.2	23.7	27.5	33.6	42.9	38.7	28.9	24.3	24.7	20.2	17.9	18.5	15.4	17.5	12.6	24.2	29.1	38.1	45.7	35.0	22.8	19.7	27.4	20.1	20.4	-9999.0
152	Gulf of Alaska	26.5	29.3	41.3	40.9	37.6	36.8	34.7	23.4	19.9	22.1	44.7	53.8	50.4	47.0	34.3	38.0	41.9	45.1	34.9	27.3	23.6	46.4	39.2	24.6	51.4	44.2	33.7	24.3	35.9	35.0	-9999.0
154	Southeast Bering Sea	14.7	39.2	14.6	30.1	20.6	23.1	27.5	10.7	9.4	19.5	42.9	56.2	35.0	48.8	32.7	19.5	57.1	42.5	31.8	29.9	23.7	21.8	31.0	21.0	44.1	29.4	20.0	24.0	9.8	22.3	-9999.0