18 4 Vol. 18, No. 4 2006 12 CH INESE JOURNAL OF POLAR RESEARCH December 2006 (, 100081), Koldewey 1993 2003,,, 32. 2%,, ;, 10, NCEP /NCAR, NCEP Koldewey NCEP /NCAR 1,, [ 1 ],,, 90 1991,, [ 2 ] ; 1999 2003, [ 1, 3 ] ; 2002 [ 2 ] 2004 7,,, [ ] 2006 7, 2006 8 [ ] (40333032) [ ],, 1977 2005
4 : 255 [ 2, 4 7 ] [ 8 11 ],,,, [ 12 ] Koldewey 1993 2003, [ 13 ],,, NCEP Koldewey, NCEP 2,, 1231km, 107km Koldewey (78. 925 N, 11. 950 E, 11m) A lfred W egener Institute (AW I) 1991 8 200m,, - 5. 1,, 0 ( Coreless W inter) ( Pointed Sum2 mer) [ 14 ], ( ), 1 2m / s [ 13 ],, 1993 2003 11, AW I [ 13 ],, + 1 5 Kipp + Zonen CM11; Epp ley ; Haenni Solar NCEP /NCAR, [ 15, 16 ] ( CDC) NCEP /NCAR ( NCEP ), 1993 2003 (,, ), 192 94 3 [ 17 ], 1985, 12,,, 128d (4 19 8 24 ), 120d (10 23 2 19 ) 12. 2h,, 3. 6h,
256 18 29. 2%, 72. 4%,,, 7. 7h, 32. 2% 6. 7h, 5. 3h, 27m in 93. 4% 4 5, ( 1) 2 1 4 7 10,, 1 10 7,, 10 20m in /h 7,, 4, 35m in, 30m in /h, 9, 15 1 Fig. 1. Annual cycle of sunshine duration 2 Fig. 2. D iurnal change of sunshine duration
4 : 257 4 4. 1 ( Q) Koldewey 3,, 82% 97%, 5 6,, 387W m - 2, 2000 6, 653W m - 2, 2001 6,,, 6, 600. 6MJ m - 2, (69 22 S, 76 22 E) 12 (938MJ m - 2 ) 2 /3, (62 13 S, 58 58 W ) (382MJ m - 2 ) [ 18 ] 3 Fig. 3. Annual change of Q, (1 - a) Q, F and B 2429MJ m - 2, (79 15 S, 40 30 E) 4509MJ m - 2 [ 5 ], 1939MJ m - 2 [ 18 ] Koldewey 17,,,, 7,, 7 4 ( 4a), 4 250W m - 2, 7 50W m - 2 4. 2 ( a) [ ( 1 - a) Q]
258 18 4 Fig. 4. D iurnal change of Q, (1 - a) Q, F and B, 51%, 5 5 ( : % ) Fig. 5. Annual change of albedo 4, 3 5 78%, 6,,, 7 9 20% ;, 7 8, 15%,,,,, 12 1 ( ) 22% 19% [ 19 ], Koldewey
4 : 259,,,,,,, 7,,, 7 4 4b, 7 200W m - 2, 4 4. 3 ( F), ( ) 1124MJ m - 2, 420MJ m - 2,,, 3,, 7 8,, ( 4c),, 0 5W m - 2,,, 7, 25W m - 2 38MJ m - 2, 24MJ m - 2,, 4. 4 ( B),,, 4 9,, (6 9 ), 4 10 64. 6MJ m - 2,,, ( 2. 7% ),, 585. 5MJ m - 2 5 9, 6 7 5 8 601MJ m - 2, 545MJ m - 2 4d, 7 4 (7 17 ) 7 170W m - 2, 11 4 66W m - 2, 12 4. 5 ( 6),, 12,,
260 18 0. 001, 1994 1996 1999, 6 12, 1997 6 Fig. 6. Monthly standard variation of Q, (1 - a) Q, F and B,, 0. 4W m - 2 /10a;,, [ 13 ], 5 NCEP NCEP, NCEP,,, NCEP,,,, 1993 2003 NCEP Koldewey (13. 125 E, 79. 0435 N), NCEP NCEP, T62L28 6, [ 15, 20 ]
4 : 261 NCEP Koldewey, NCEP,, 7 NCEP, 4017, NCEP, Koldewey, 8 11, NCEP, 7 ( a) Q; ( b) (1 - a) Q; ( c) F; ( d) B Fig. 7. Correlation between NCEP reanalysis data and Koldewey observation data of daily Q, ( 1 - a) Q, F and B from 1993 to 2003 8 ( a) Q; ( b) (1 - a) Q; ( c) F; ( d) B Fig. 8. Annual cycle of average daily Q, ( 1 - a) Q, F and B from 1993 to 2003 (NCEP reanalysis data and Koldewey observation data)
262 18 7, NCEP, 8, NCEP,, : (1) NCEP, NCEP ; (2) 5 6, 7,,, ; (3), 4 9,,,, NCEP,, ; (4),, NCEP, ; (5), NCEP, NCEP, IPCC 1995 [ 21 ],, NCEP ( ),, 6, (1), 70%, 29. 2% (4 9 ) (10 3 ) (2),,, 64. 6MJ m - 2 (3) 10, (4) NCEP,,, 60 N,,,,, NCEP, A lfred2w egener2institute (AW I) D r. Andreas Herber, D r. Roland
4 : 263 Neuber M rs. Siegrid Debatin Koldewey 1.. :, 2003. 1 339. 2,,.., 2004, 16 (3) : 161 192. 3.. :, 2004. 1 229. 4,,.., 1990, 3 (4) : 42 51. 5,,,.., 1998, 9 (2) : 160 168. 6,,.., 1999, 3 (4) : 42 53. 7,.., 1993, 5 (1) : 39 45. 8,,,.. (D ), 2003, 33 (2) : 139 147. 9,,,.., 2002, 45 (1) : 8 16. 10,,,.., 2000, 12 (4) : 253 261. 11,,,.., 2001, 11 (5) : 492 498. 12 Georgiadis T, et al. Radiation and turbulence parameterizations at Ny2! lesund, Svalbard Islands. Mem Natl Inst Polor Res ( Spec), 2001, 54: 125 131. 13,,. Ny2! lesund., 2005, 17 (1) : 32 44. 14 SchwerdtfegerW. W eather and climate of antarctic. Development in A tmospheric Science, 1984, 15: 261. 15 Kalnay E, Kanam istu M, Kistler R, et al. The NCEP /NCAR 402year Reanalysis Project, Bulletin ofamerican Meteorologi2 cal Society, 1996, 77 (9) : 437 471. 16,,. NCEP /NCAR 40., 1999, 18 (2) : 199 208. 17,.., 1991, 12 (1) : 27 32. 18,,.., 2002, 9 (2) : 255 262. 19,,,. 20., 2004, 62 (5) : 672 691. 20 Kistler R, et al. The NCEP2NCAR 502Year reanalysis: monthly means CD2ROM and documentation. Bulletin of the A2 merican Meteorological Society, 2001, 82 (2) : 247 267. 21 IPCC. The Science of Climate Change. UK: Cambridge University Press, 1995. 78.
264 18 SUR FAC E RAD IAT ION CHARAC TER IS T IC S AT N Y2! LESUND OVER THE ARC T IC TUNDRA AR EA Deng Haibin, Lu Longhia and B ian L ingen (Chinese Academy of Meteorological Sciences, Beijing 100081, China) Abstract Based on Koldewey Station s 1993 2003 hourly observational data, this paper conducts a statistical analysis on the radiation characteristics for an arctic tundra region (Ny2! lesund is2 land) where our first arctic expedition station (Huanghe Station) is located. Affected by cloudy sky, Ny2! lesund s sunshine percent was only 32. 2% even during deep summer. A s a result of ice and snow s melting effect during warm season, surface reflecting ratio was quickly decrea2 sing and surface absorbing radiation and effective radiation were rap idly increasing. net radiation was positive during the whole year. warm season and was absent during cold season. trends though temperature was clear up trend at Ny2! lesund. The total Surface absorbing radiation m ainly focused in Radiation factors didn t show clear changing NCEP /NCAR reanalysis data of the grid closest to Ny2! lesund aren t accurate in keep ing consistent changes with the data ob2 tained at Ny2! lesund about surface radiation factors. Key words A rctic, tundra surface, Koldewey, radiation characteristics, NCEP /NCAR.