Rashpal S. Gill

Research areas and interests

• Weather radars data quality: false echoes removal, radar calibration and pointing accuracy
• Dual polarisation radars
• Mapping of the sea ice using satellites, icebergs detection, sea ice type determination, open water – sea ice discrimination
• Photogrammetry: aircrafts and satellites
• Electromagnetic wave propagation for the design of HF radars
• Effects on satellite SAR resolution and image quality caused by ionospheric scintillations
• Modelling of the high latitude ionosphere for the diurnal prediction of the F2 region parameters
• Modelling of the solar wind magnetic field

Education

1978     B.Sc (1st class honours in Physics) from King's College,             University of London.

1982     D. Phil (Solar Physics), Department of Theoretical Physics,             University of Oxford.

Employment record

1982-83     Post doctoral position at Department of Mathematics, Queen                  Mary College, University of London.

1983-84     Post doctoral position at Department of Theoretical Physics,                  University of Oxford

1984-87     Marconi Research Centre, Chelmsford, England

1987-93     Deutsche Forschungsanstalt für Luft und Raumfahrt (DLR),                  Oberpfaffenhofen, Germany (external contractor).

1993-95     NordSoft A/S, Åbenrå, Denmark.

1995 –       Senoir Consultant, DMI, Denmark.

Publications

DMI:

1.Gill, R. S., “Sea clutter removal using radar elevation dependent second order texture parameters”, DMI scientific report, 07-01, 2007.

2.Gill, R. S., Overgaard S. and Thomas Bøvith, “The Danish weather radar network”, 4th European conference on radar in Meteorology and Hydrology, Barcelona 18th – 22nd September, 2006 (ERAD 2006).

3.Bøvith T., Gill, R. S., Overgaard S., Nielsen, A. A. and L. K. Hansen, “Detecting weather radar clutter using satellite based nowcasting products”, 4th European conference on radar in Meteorology and Hydrology, Barcelona 18th – 22nd September, 2006 (ERAD 2006).

4.Gill, R. S., Overgaard S., “Weather radar DMI pseudo CAPPI product versus the EEC BASE product”, DMI internal report, 05-10, 2005.

5.Gill, R. S., Overgaard S., “Monitoring the calibration and elevation differences of the DMI weather radars”, DMI internal report, 05-02, 2005

6.Gill, R. S., Bøthun L., E., Overgaard S., and Damgaard K., “Evaluation of new weather radar sites on Sjælland”, DMI internal report, 04-16, 2004

7.Gill, R. S., Overgaard S.,  “Report on the DMI weather radars – An analysis of the differences between the Ericsson and EEC radars”, DMI internal report, 02-17, 2002.

8.Gill R. S., 2002, “SAR surface classification using distribution matching”,  POLinSAR workshop,  ESA-ESRIN in Frascatti, Italy, 14th – 16th January, 2003.

9.Gill R. S., “SAR ice classification using fuzzy screening method”, POLinSAR 2003 Workshop, ESA-ESRIN in Frascatti, Italy, 14th – 16th January, 2003.

10.Overgaard S. and Gill R. S., Report on the DMI weather radars, an analysis of the difference between the Ericsson and EEC radars,  DMI internal report, 2002.

11.Gill R. S., “SAR ice classification using fuzzy screening method”, DANISH MET. Scientific report, 02 -12, 2002.

12.Gill R. S., “SAR surface classification using distribution matching”, DANISH MET. Scientific report, 02 -08, 2002.

13.Ezraty R., R. Tonboe and R. Gill, “Monitoring the 2001 Odden with SeaWinds, 7th Circumpolar Symposium on Remote Sensing of Polar Environments, Longyearbyen, Spitsbergen, 24th – 27th June 2002.

14.Gill R. S., 2001, “Sea Ice Edge and Icebergs Detection using routine operations”. Canadian J. remote sensing, special issue on Sea Ice and Icebergs, vol. 27, no. 5, pp 411 – 432.

15.Gill R. S., Rosengreen M. K, H. S. Andersen and H. H. Valeur: “Detecting low concentration of Sea Ice and the position of Icebergs using Radarsat ScanSAR Wide data”, in the WMO and CIWG workshop on Mapping and Archiving of Sea Ice data, held in Ottawa 2nd-4th  Canada 2000.

16.Gill R. S., Rosengreen M. K. and Valeur H. H.: ”Operational Sea Ice Mapping with Radarsat for Ship Navigation in the Greenlandic Waters”, Canadian J. Remote Sensing, 2000, vol. 26, No. 2, 121-132.

17.Gill R. S. and Valeur H. H.: ”Ice cover discrimination in the Greenland waters using first-order texture parameters of ERS SAR images”, Int. J. Remote Sensing, 1999, vol. 20, No. 2, 373-385.

18.Gill R. S., Tonboe R. and H. H. Valeur, “Sea Ice Edge and Icebergs Determination in ERS SAR and RADARSAT Images” in The 1999 EUMETSAT Meteorological Satellite Data Users’ Conference, Copenhagen 6th - 10th Sept. 1999.

19.Tonboe, R. S. Gill and J. Horstmann: ”Near ice edge estimation of the sea surface winds using Radarsat ScanSAR”, in The 1999 EUMETSAT Meteorological Satellite Data Users’ Conference, Copenhagen 6th - 10th Sept. 1999.

20.Andersen H. S., R. S. Gill, H. Valeur, K. Q. Hansen, P. Nielsen, M. K. Rosengreen: ”Operational Sea Ice Charting around Greenland using information from multiple satellites”, poster at The 1999 EUMETSAT Meteorological Satellite Data Users’ Conference, Copenhagen 6th - 10th Sept. 1999.

21.Gill, R. S., Rosengreen M.K., Tonboe R. T., Andersen H. S., Nielsen P., Valeur H. H. and Hansen K. Q.: ”Ship Navigation based on Radarsat Derived Ice Products”, in the 15th International conference on Port and Ocean Engineering under Arctic Conditions POAC-99,  Helsinki, August 23rd -27th , 1999.

22.Sandven, S., M. Makynen, M. Mallikinen, A. Cavanie, R. Ezraty, R. S. Gill, H. H. Valeur, L. Toudal Pedersen, V. Alexandrov, A. Bogdanov, R. T. Tonboe, M. Lundhaug, Ø. Dalen and K. Kloster. 1999: IMSI Final Report. Integrated use of new microwave satellite data for improved sea ice observation (IMSI). IMSI report no. 12, European Commision Environment and Climate Program 1994-1998. Theme 3: Space Techniques Applied to Environmental Monitoring and Research. Area 3.3.3: Centre for Earth Observation Application Support. Contract No. ENV4-CT96-0361.

23.Gill, R. S., Rosengreen M.K., Nielsen P. and Valeur H. H.: ”Sea ice mapping around Greenland using Radarsat”,  in the Radarsat ADRO symposium, Montreal, Canada, 13th. - 15th. October 1998.

24.Gill, R. S., Rosengreen M.K., Andersen H. S., Tonboe R. T. and Valeur H. H.: ”Sea ice mapping around Greenland using Radarsat”,  in the 7th international conference on the development and commercial utilization of technologies in polar region, POLARTECH’98, Nuuk, Greenland, June 8-14, 1998.

25.Gill, R. S., Valeur H. H. , P. Nielsen and Hansen K. Q. : ”Using ERS SAR images in the operational mapping of sea ice in the Greenland waters”, Danish Met. Inst. Scientific report No. 98-6, 1998.

26.Gill, R. S. and Rosengreen M.K.: ”Evaluation of the Radarsat imagery for the operational mapping of the sea ice around Greenland in 1997”, Danish Met. Inst. Scientific report No. 98-5, 1998.

27.Gill, R. S., Valeur H. H. & P. Nielsen : ”Evaluation of the Radarsat images in the operational mapping of the sea ice in the Greenland waters”, in the Geomatics in the ear of Radarsat, GER´97 symposium, Ottawa, May 1997.

28.Gill, R. S., Valeur H. H: ”Evaluation of the Radarsat images in the operational mapping of the sea ice in the Greenland waters”, Danish Met. Inst. Scientific report No. 96-9, 1996.

29.Gill R. S. and Valeur H. H: “Ice cover discrimination in the Greenland waters using first order texture parameters of the ERS.SAR images”, Int. J. Remote Sensing, 1999, vol. 20, No. 2, 373-385.

30.Gill R. S.: “Ice edge determination in the Greenland waters using first order texture parameters of the ERS.SAR images” , 4th Circumpolar Symposium, Lyngby, Copenhagen, 1996.

31.Gill R. S., Nielsen P. and Valeur H. H.:  Evaluation of the ERS.SAR high resolution precision images in the operational mapping of sea ice in the Kap Farvel waters , Proceedings of the Second ERS Application workshop, London 6th. - 8th. , 1995.

32.Gill R. S., Valeur H. H. and Nielsen P.:  Evaluation of ERS.SAR images in the operational mapping of sea ice in the Greenland waters in Donald D. Deering (Ed) & Pr. Gudmandsen (ed.)  Proceedings of the Global Process Monitoring and Remote Sensing of the Ocean and Sea Ice , pp134 - 144, SPIE vol. 2586, 1995.

33.Gill R. S., “ The detection and monitoring of oil spills using satellite observations”, Danish Met. Inst. Technical report No. 95-10, 1995.

DLR:

34.Lehner, M. and Gill, R. : "Semi- automatic derivation of digital elevation models from stereoscopic 3- line scanner data", European International Space Year, conference, Muenchen, March 1992 and in ISPRS Congress Commission IV, Washington, August 1992.

35.Heipke, C., Kornus, W., Gill, R. and Lehner, M. : "Mapping technology based on 3- line camera  imagery ", ISPRS- IV, Japan, 1990.

36.Gill, R. :"Photogrammetric adjustment software SAEROS", DLR Technical reports no. 552-6, 1988 and 552-9, 1990.

37.Lehner, M. and Gill, R.. :"Photogrammetric adjustment of triple stereoscopic imagery of an airborne CCD scanner", Proceedings of 3D - Optical Measurement Techniques, Wien, 18-20.9.1989.

38.Drescher, A., Masaharu, H., Gill, R. and Lehner, M. :"Improvement of photogrammetric quality of the fold stereoscopic linear camera MEOSS by Gauss- Markov models of  satellite dynamics", ISPRS, Kyoto 1988, vol. 27 B11 pp196- 210.

MARCONI:

39.Quegen, S., Gill, R. S., Lockwood, M. : "Comparisons between EISCAT observations and model calculations of the high  latitude ionosphere", journal of atmospheric and terrestrial physics, vol. 12, 1057-1076, 1988.

40.Gill, R. :"The loss of SAR resolution and image quality caused by ionospheric scintillations", Marconi technical Report, 1987.

41.Milsom, J. D., Gill, R. and Herring, R. N. :"HF ground wave propagation from a cliff-top site", ICAP, 1987.

42.Gill, R. and Ward, I. A. :"Interleaved wind/wave mode and its impact on algorithms for the ERS-1 satellite", for the UK product support team, 1986.

43.Gill, R. S.: A number of Marconi Technical reports (MTR 85/46, 85/45, 85/64, 86/60, concerning ground wave propagation for the design of HF radar systems and the high latitude modelling of ionosphere 1984-1987.

44.Gill, R., Herring, R. N., Kingsley, S. P., Milsom, J. D., Pielou, J. M., Rotheram, S.: "Propagation predictions for a HF radar system planning", North American Radio Science meeting and International IEEE/AP-S symposium, HF radar, Vancouver, Canada, June 17- 1985. GEC journal of research vol.4, No.4, 1986.

45.Rotheram, S., Milsom, J. D., Herring, R. N., Pielou, J. M., Gill, R. :"Ground wave propagation over irregular surfaces", Fourth conference on antenna and propagation (ICAP 85), Warick, England, 1985.

September 2007