Abstract
At Frankfurt airport (EDDF) vertical soundings of the lower atmosphere from two independent sources are available. One of them is a wind and temperature profiler (wind temperature radar and radio acoustic sounding system, WTR/RASS) located at the western end of the main pair of runways. The second source is aircraft meteorological data relay (AMDAR), i.e. measurements operationally collected by approaching and departing aircraft. Together, both offer a rare opportunity to compare the performance of these widely used systems. We use 1 year of continuous data to calculate systematic temperature and wind vector differences between both measurement systems. The differences show a clear season-dependent structure in conjunction with typical inversion heights. Possible causes for this behaviour are discussed. Second, we compare the ability of both systems to identify inversion and wind-shear layers above the airport. AMDAR-detected layers are typically higher than wind profiler detections. The layer base is usually detected with more agreement than the top. The mutual probability of detection of inversions is found to be mostly between 40 and 60%.
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References
Ballish BA, Kumar VK (2008) Systematic differences in aircraft and radiosonde temperatures. Bull Am Meteorol Soc 89(11): 1689–1707. doi:10.1175/2008BAMS2332.1
Baumann-Stanzer K (2004) The UHF wind profiler at Vienna airport—data quality control and comparisons to rawinsonde data. Meteorol Atmos Phys 85(1–3): 165–174. doi:10.1007/s00703-003-0043-x
Beaudette DC (1988) Pilot windshear guide. Technical report AC no. 00-54, United States Department of Transportation, Washington, 64 pp
Benjamin SG, Schwartz BE, Cole RE (1999) Accuracy of ACARS wind and temperature observations determined by collocation. Weather Forecast 14(6): 1032–1038. doi:10.1175/1520-0434(1999)014<1032:AOAWAT>2.0.CO;2
Blackadar AK (1957) Boundary layer wind maxima and their significance for the growth of nocturnal inversions. Bull Am Meteorol Soc 38: 283–290
Bonner WD (1968) Climatology of the low level jet. Mon Weather Rev 96(12): 833–850. doi:10.1175/1520-0493(1968)096<0833:COTLLJ>2.0.CO;2
Bouttier F (2001) The use of profiler data at ECMWF. Meteorol Z 10(6): 497–510. doi:10.1127/0941-2948/2001/0010-0497
Buck AL (1981) New equations for computing vapor pressure and enhancement factor. J Appl Meteorol 20(12): 1527–1532. doi:10.1175/1520-0450(1981)020<1527:NEFCVP>2.0.CO;2
CAA (2009) Radiotelephony manual, 18th edn. CAP 413, The Stationery Office, Norwich, 198 pp
Chan PW, Shao AM (2007) Depiction of complex airflow near Hong Kong international airport using a doppler LIDAR with a two-dimensional wind retrieval technique. Meteorol Z 16(5): 491–504. doi:10.1127/0941-2948/2007/0220
DFS (2009) Luftfahrthandbuch Deutschland. DFS Deutsche Flugsicherung, Offenbach (Main)
Drosg M (2009) Dealing with uncertainties. Springer, Berlin, p 235
Drüe C, Heinemann G (2001) Airborne investigation of arctic boundary-layer fronts over the marginal ice zone of the Davis strait. Boundary-Layer Meteorol 101: 261–292. doi:10.1023/A:1019223513815
Drüe C, Hauf T, Finke U, Keyn S, Kreyer O (2007) Comparison of a safir lightning detection network in northern Germany to the operational BLIDS network. J Geophys Res 112: D18114. doi:10.1029/2006JD007680
Drüe C, Frey W, Hoff A, Hauf T (2008) Aircraft type-specific errors in AMDAR weather reports from commercial aircraft. Q J Roy Meteorol Soc 134(630): 229–239. doi:10.1002/qj.205
Emeis S, Münkel C, Vogt S, Müller WJ, Schäfer K (2004) Atmospheric boundary-layer structure from simultaneous SODAR, RASS, and ceilometer measurements. Atmos Environ 38(2): 273–286. doi:10.1016/j.atmosenv.2003.09.054
FAA (2009) Order JO 7110.10, Flight Services, Federal Aviation Administration, chap Pilot/Controller Glossary (P/CG), pp PCG1–PCG117
Frech M, Holzäpfel F, Tafferner A, Gerz T (2007) High-resolution weather database for the terminal area of Frankfurt airport. J Appl Meteorol Climatol 46(11): 1913–1932. doi:10.1175/2007JAMC1513.1
Grooters F, Berechree M (2009) Amdar implementation. In: Eleventh meeting of the AMDAR panel, 19–21 Nov 2008, Pealing Jaya, Malaysia, Doc. 3.1(1), 46 pp
Heinemann G (2002) Aircraft-based measurements of turbulence structures in the katabatic flow over greenland. Boundary-Layer Meteorol 103: 49–81. doi:10.1023/A:1014537229865
Helms D, Johnston KL, Sanger G, Taubvurtzel B, Petersen RA, Homans A, Hoff A (2009) Testing and deployment of the water vapor sensing system II. In: 25th conference on international interactive information and processing systems (IIPS) for meteorology, oceanography, and hydrology, 89th American Meteorological Society annual meeting, 10–16 Jan 2009, Phoenix, AZ
Hoke JE (2007) Terminal aerodrome forecasts. National weather service instruction 10-813. United States National Weather Service, Silver Spring, MD, 59 pp
Holzäpfel F (2005) Probabilistic tow-phase aircraft wake-vortex model: further development and assessment. DLR-IAP report, vol 207. Deutsches Zentrum für Luft- und Raumfahrt, Oberpfaffenhofen, pp 1–25
Holzäpfel F, Steen M (2007) Aircraft wake-vortex evolution in ground proximity: analysis and parameterization. AIAA J 45: 218–227. doi:10.2514/1.23917
Huber J (2003) Noise propagation model for the design of weather specific noise abatement procedures. PhD thesis, Technology. Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, 107 pp
Ishii S, Mizutani K, Aoki T, Sasano M, Murayama Y, Itabe T, Asai K (2005) Wind profiling with an eye-safe coherent doppler lidar system: comparison with radiosondes and VHF radar. J Meteorol Soc Jpn 83(6): 1041–1056. doi:10.2151/jmsj.83.1041
Kaplan ML, Lin YL, Charney JJ, Pfeiffer KD, Ensley DB, DeCroix DS, Weglarz RP (2000) A terminal area PBL prediction system at Dallas-Fort Worth and its application in simulating diurnal PBL jets. Bull Am Meteorol Soc 81(9): 2179–2204. doi:10.1175/1520-0477(2000)081<2179:ATAPPS>2.3.CO;2
Keder J (1999) Detection of inversions and mixing height by REMTECH PA2 sodar in comparison with collocated radiosonde measurements. Meteorol Atmos Phys 71(1): 133–138. doi:10.1007/s007030050051
Kessler E (1990) Low-level windshear alert systems and doppler radar in aircraft terminal operations. J Aircr 27(5): 423–428
Konopka J, Fischer H (2005) The wake vortex warning system at Frankfurt airport. In: The 24th digital avionics systems conference, 2005. DASC 2005. doi:10.1109/DASC.2005.1563340
Lenschow DH, Pennell WT (1974) On the measurement of in-cloud and wet-bulb temperatures from an aircraft. Mon Weather Rev 102: 447–454. doi:10.1175/1520-0493(1974)102<0447:OTMOIC>2.0.CO;2
Lester P (2001) Aviation weather, 2nd edn. JeppesenSanderson, Englewood, CO, p 460
Lunnon RW, Hauf T, Gerz T, Josse P (2006) Flysafe—meteorological hazard nowcasting, driven by the needs of the pilot. In: 12th conference on aviation range and aerospace meteorology, 28 Jan to 2 Feb 2006, Atlanta, GA
Markovic D, Hauf T, Röhner P, Spehr U (2008) A statistical study of the weather impact on punctuality at Frankfurt airport. Meteorol Appl 15(2): 293–303. doi:10.1002/met.74
Moninger WR, Mamrosh RD, Pauley PM (2003) Automated meteorological reports from commercial aircraft. Bull Am Meteorol Soc 84: 203–216. doi:10.1175/BAMS-84-2-203
Painting JD (2003) AMDAR reference manual. Technical report WMO-no 958. World Meteorological Organization, Geneva, p 84
Pastre C (2000) What is new in our programmes?. EUMETNET News 6: 13–15
Piringer M (1998) Summertime mixing heights at Vienna, Austria, estimated from vertical soundings and by a numerical model. Boundary-Layer Meteorol 89(1): 25–45. doi:10.1023/A:1001565319487
Schwartz B, Benjamin SG (1995) A comparison of temperature and wind measurements from ACARS-equipped aircraft and rawinsondes. Weather Forecast 10: 528–544. doi:10.1175/1520-0434(1995)010<0528:ACOTAW>2.0.CO;2
Scintec (2006) Product information: radar wind profilers, temperature profilers. Technical report AP 2006/2. Scintec AG, Rottenburg, 13 pp
Stickney TM, Shedlov MW, Thompson DI (1994) Goodrich total temperature sensors. Technical report 5755. Goodrich Corporation, Burnsville, MN, p 32
Strunin MA, Hiyama T (2004) Response properties of atmospheric turbulence measurement instruments using Russian research aircraft. Hydrol Process 18(16): 3099–3117. doi:10.1002/hyp.5751
Stull RB (1988) An introduction to boundary-layer meteorology. Kluwer Academic Publishers, Dordrecht, p 666
Takahashi K, Masuda Y, Matuura N, Kato S, Fukao S, Tsuda T, Sato T (1988) Analysis of acoustic wave fronts in the atmosphere to profile the temperature and wind with a radio acoustic sounding system. J Acoust Soc Am 84(3): 1061–1066. doi:10.1121/1.396691
Vali G, Kelly RD, Pazmany A, McIntosh RE (1995) Airborne radar and in-situ observations of a shallow stratus with drizzle. Atmos Res 38(1–4): 361–380. doi:10.1016/0169-8095(95)00006-D
Yeung KK (1998) Use of wind profiler in severe weather monitoring. Meteorol Z 7(6): 326–331
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Drüe, C., Hauf, T. & Hoff, A. Comparison of Boundary-Layer Profiles and Layer Detection by AMDAR and WTR/RASS at Frankfurt Airport. Boundary-Layer Meteorol 135, 407–432 (2010). https://doi.org/10.1007/s10546-010-9485-0
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DOI: https://doi.org/10.1007/s10546-010-9485-0