FILCHEV, Lachezar Hristov
(Family name, First Name, Second name)


Office Address: bl.1, Acad. G. Bonchev St.,
Sofia 1113, Bulgaria


Phone: (+359 2) 979 24 11


Fax: (+359 2) 988 35 03





  • Doctor of Philosophy (Ph.D.), Remote sensing of the Earth and planets, (2007-2012) - Space Research and Technology Institute, Bulgarian Academy of Sciences (SRTI-BAS),

       Environmental Management D.S.P.U (Postgraduate Diploma), (2007-2008) - Mediterranean Agronomic Institute of Chania (MAICh)

        Applied Computer Science (Specialist), (2004-2006) - Centre for Education Services (CES) at Sofia University St. Kliment Ohridski

  • Physical geography and landscape ecology (M.Sc.), (2004-2006) - Sofia University St. Kliment Ohridski, Geology-Geography Faculty
  • Geography (B.Sc.), (2000-2004) - Sofia University St. Kliment Ohridski, Geology-Geography Faculty
  • Undergraduate with profile Geography, (1995-2000) - National High School of Mathematics and Natural Sciences "Acad. Lyubomir Chakalov"



  • Prof. Marin Drinov young scientist award, section "Astronomy, Space Research and Technologies", 2013 | Bulgarian Academy of Sciences (BAS)
  • Goetz Instrument Support Program (GISP) award, 2011 | ASD Inc. (PANalytical) and the Geosciences and Remote Sensing Society (GRSS)
  • Certificate of Attendance, Learning IDL for Building Expert Applications in ENVI, 2010 | ITC - University of Twente
  • Certificate, Hyperspectral Remote Sensing, 2009 | ITC - University of Twente
  • D.S.P.U., Environmental Management, 2008 | Mediterranean Agronomic Institute of Chania (MAICh)
  • Specialist, Applied Computer Science, 2006 | Centre for Education Services (CES) at Sofia University "St. Kliment Ohridski"
  • Berndt-Artin Wessels Award for distinction, 2003 | Sofia University "St. Kliment Ohridski"


Previous Experience:

  • Associate Professor. Space Research and Technology Institute Bulgarian Academy of Sciences (SRTI-BAS), 24.06.2014-until now.
  • Chief Assistant. Space Research and Technology Institute Bulgarian Academy of Sciences (SRTI-BAS), 06.2010-24.06.2014;
  • Research Fellow III rank. Space Research Institute Bulgarian Academy of Sciences (SRI-BAS),  02.04.2007-06.2010;
  • Cartographer. Space Research Institute BAS (SRI-BAS), , 02.10.2006-02.04.2007;
  • Digitalization of physical blocks. Soil Resource Agency, Ministry of Agriculture and Forestry, 11.06.2006-22.07.2006;
  • Informatics and Information Technologies (IIT) Teacher. 29th Secondary Comprehensive School Kouzman Shapkarev, 13.08.2005-30.06.2006;
  • Geography Teacher. 7th Secondary Comprehensive School Sveti Sedmochislenici, 11.10.2004-30.07.2005.


Scientific Activity:


Participation in projects (in the last 5 years):

  1. EEOBSS: Education in Earth observation for Bulgarian secondary schools. Contract No 4000117592/16/NL/NDe under the ESA-PECS (Plan for European Cooperating States). 20162018. Project Officer: Assoc. Prof. Lachezar Filchev, Ph.D. (URL:
  2. Testing Sentinel-2 vegetation indices for the assessment of the state of winter crops in Bulgaria (TS2AgroBg). Contract No (4000117474/16/NL/NDe) under the ESA-PECS (Plan for European Cooperating States). 20162018. Project Officer: Assoc. Prof. Petar Dimitrov, Ph.D.
  3. Studying Coniferous Forests' Characteristics with Radarsat-2 Data in Bulgaria. Project ID 16788, ESA Category-1 SEOM. 20142016. Principal Investigator (PI): Assoc. Prof. Dr. Lachezar Filchev.
  4. Crop Monitoring using PROBA-V 100 m S10 products on Zlatia test site Bulgaria. SRTI-BASVITO, 2014. Principal Investigator (PI): Prof. Dr. Eugenia Roumnina.
  5. European Metrology for Earth Observation and Climate (MetEOC). EMRP-EURANET-EU, 2014. Task: Acquisition of leaf spectro-directional scattering data with Portable HYperspectral Transmission and Optical Scattering (PHYTOS) goniometer for a web-database (
  6. Information Complex for Aerospace Monitoring of the Environment (ICASME). Grant Contract BG161PO003-1.2.04-0053-C0001, under OP Development of the Competitiveness of the Bulgarian Economy 2007-2013, procedure BG161PO003-1.2.04 Development of Applied Studies in Bulgarian Research Organizations, European Regional Development Fund. Project Leader: Prof. DSc. P. Getzov.  Project coordinator: Prof. Dr. E. Roumenina
  7. Development of the Scientific-Research Complex (SRC) of Bulgarian Aerospace Test Sites (BASTSs). Joint Research Project Bulgarian Academy of Sciences. Principal Investigator: Prof. Dr. E. Roumenina.
  8. Testing PROBA-V and VEGETATION data for agricultural applications in Bulgaria and Romania (PROAGROBURO). Contract Ref. Nr CB/XX/16 between the SRTI-BAS and the Belgian Federal Science Policy Office (BELSPO), under the PROBA-V Preparatory Programme. Principal Investigator: ssoc. Prof. Dr. E. Roumenina.


Main Fields of Scientific Research (keywords):

Hyperspectral Remote Sensing, Field Spectrometry, Geographical Information Systems (GIS), Landscape Ecology, Environmental Management, Geodatabases, Cartography


Membership in Scientific and Professional Institutions, Bodies, and Organizations:

  • European Association of Remote Sensing Laboratories (EARSeL) - National representative at EARSeL Council (2012 2015), group membership - 2009 →
  • International Geographic Union, Committee for Land-Use Cover Change (IGU-LUCC), individual membership - 2014 →
  • Copernicus User Forum deputy of the national representative - 2015 →
  • GEO national representative at GEO HLWG (High Level Working Group) - 2017 →


Editorial board memberships:

         Cogent Geoscience Editorial board member - 2015 →

         European Journal of Remote Sensing Editorial board member - 2016 →

  • Aerospace Research in Bulgaria English language editor - 2015 →


Publications (in the last 5 years):

1       Yanev, I., and L. Filchev. (2016). A comparative analysis between MODIS LST Level-3 product and in-situ temperature data for estimation of urban heat island of Sofia. // Aerospace Research in Bulgaria, Vol. 28, pp. 7792. Publisher: SRTI-BAS, ISSN 1313-0927. (URL: (Date online: 2016/20/12)

2       Filchev, L., (2015). Land-use/land-cover change of Bistrishko Branishte biosphere reserve using Sentinel-2 simulated data. // Aerospace Research in Bulgaria, No 27, pp. 5465. Publisher: Space and Research and Technology Institute Bulgarian Academy of Sciences (SRTI-BAS). ISSN 1313-0927. (URL: (Date online: 2015/20/12)

3       Roumenina, E., Atzberger, C., Vassilev, V., Dimitrov, P., Kamenova, I., Banov, M., L. Filchev & Jelev, G. (2015). Single-and Multi-Date Crop Identification Using PROBA-V 100 and 300 m S1 Products on Zlatia Test Site, Bulgaria. Remote Sensing, Vol. 7, No 10, pp. 1384313862.

4       , ., . , . , . , . , . , . . (2015). - . : 10- , , (SES 2014), , 1214 2014 . . 307320. : SRTI-BAS, ISSN: 1313-3888. (URL:

5       Manakos, I., K. Chatzopoulos-Vouzoglanis, Z. I. Petrou, L. Filchev, and A. Apostolakis. (2014). Globalland30 Mapping Capacity of Land Surface Water in Thessaly, Greece. Land, Vol. 4, No 1, pp. 118. Publisher: Multidisciplinary Digital Publishing Institute (MDPI), e-ISSN 2073-445X. DOI: (Date online: 23 December 2014).

6       Filchev, L., (2014). Hyperspectral Satellite Earth Observation Missions - A Review. // Aerospace Research in Bulgaria, No 26, pp. 191206. Publisher: Space Research and Technology InstituteBulgarian Academy of Sciences (SRTI-BAS), ISSN 1313-0927. (URL: arhiv/n%2026/Articles/10.pdf)

7       Roumenina, E., P. Dimitrov, L. Filchev, and G. Jelev. (2014). Validation of MERIS LAI and FAPAR Products for Winter Wheat-Sown Test Fields in North-East Bulgaria. // International Journal of Remote Sensing, Vol. 35, No 13, pp. 38593874. Published online: 30 May 2014. Publisher: Taylor & Francis, p-ISSN: 0143-1161 (print)/e-ISSN: 1366-5901 (online), DOI:

8       Filchev, L. and E. Roumenina, (2013). Model for Detection and Assessment of Abiotic Stress Caused by Uranium Mining in European Black Pine Landscapes. // EARSeL eProceedings, 12(2), pp. 124135. Publisher: EARSeL, ISSN 1729-3782 (URL: (Date online: 2013/17/10)

9       Filchev, L. Remote Sensing Activities in Bulgaria, (2013). // EARSeL Newsletter, pp. 6-16. (URL:

10    Roumenina, E., V. Kazandjiev, P. Dimitrov, L. Filchev, V. Vassilev, G. Jelev, V. Georgieva, and H. Lukarski, (2013). Validation of LAI and Assessment of Winter Wheat Status Using Spectral Data and Vegetation Indices from SPOT VEGETATION and Simulated PROBA-V Images. // International Journal of Remote Sensing, 34(8), pp. 28882904. DOI: (Date online: 2013/4/18)

11    Roumenina, E., L. Filchev, V. Vassilev, P. Dimitrov, G. Jelev, G. Stancalie, E. Savin, and D. Mihailescu, (2012). Comparative Analysis of Crop Maps for Chosen Test Areas on the Territory of Bulgaria and Romania Using Simulated Proba-V and Spot Vegetation Data. // EARSeL eProceedings, 11(2), pp. 155160. (URL: (Date online: 2012/20/12)

12    Filchev, L. and E. Roumenina, (2012). Detection and Assessment of Abiotic Stress of Coniferous Landscapes Caused by Uranium Mining (Using Multitemporal High Resolution Landsat Data). // Geography, Environment, Sustainability, 5(01), pp. 5267. M. V. Lomonosov Moscow State University (URL: (Date online: 2012/03/06)

13    Roumenina, E., L. Filchev, G. Jelev, P. Dimitrov, H. Lukarski, V. Kazandjiev and V. Georgieva. (2012). Determination of Wheat Crop Status after Winter Using Simulated Proba-V and Ground-Based Data. // In: Proceedings of 7th Scientific Conference with International Participation "Space, Ecology, Safety" (SES) 2011, 29 November 1 December 2011, Sofia, Bulgaria, Publisher: Space and Solar-Terrestrial Research Institute Bulgarian Academy of Sciences (SSTRI-BAS). ISSN 1313-3888, pp. 197207. (URL:

14    Filchev, L., (2012). Land-Use/Land-Cover Change Detection of Bistrishko Branishte Biosphere Reserve Using High-Resolution Satellite Data. // In: CD Proceedings of XXII International Symposium on Modern Technologies, Education And Professional Practice in Geodesy and Related Fields, November  0809, 2012, Sofia, Bulgaria, No 35, Publisher: Union of Geodesy and Surveyors.