Remote Sensing and GIS Department, Space Research and Technology Institute, Bulgarian Academy of Sciences (SRTI-BAS)

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  • The RS&GIS Department was established in 1976 as a unit of the Central Laboratory for Space Research (now Space Research and Technologies Institute) at the Bulgarian Academy of Sciences.
    The scientific-research activity of the Department will develop in accordance with its mission adopted at a meeting of the Constituent Scientific Board of the SRTI–BAS. It will be related with design, development, and transfer of remote sensing of the Earth technologies, geo-information systems (GIS), and ground-based methods for study of the environment. This subject matter underlies one of the priority development lines of the SRTI–BAS and it is included in Policy 2: Scientific Potential and Research Infrastructure as Part of the European Research Area (ERA), as well as Strategic Development Lines and Priorities of the BAS during the Period 2009–2013. The Department will strive to participate actively in the establishment of a knowledge-based society and to be an active partner in the European research area through its participation in scientific-research projects and intensification of its collaboration with identical units dealing with remote sensing and GIS.
    More than half on the Department’s staff list are young scientists who are targeting the field of remote sensing of the Earth and GIS technologies.
    The Department has in its disposition two dedicated Laboratories: 1) Space biotechnology laboratory, laboratory responsible: Assist. Prof. Iliana Ilieva, MS; 2) Field laboratory for sub-satellite measurements, laboratory responsible: Assoc. Prof. Georgi Jelev, PhD.
    The RS&GIS Department head is Prof. Eugenia Roumenina, Ph.D.

  • First NameLachezar
  • Last NameFilchev
  • TitleMr
  • PositionAssociate Professor
  • Email
  • Email
  • Phone 1+35929792411
  • Phone 2359879542342
  • Organisation NameSpace Research and Technology Institute, Bulgarian Academy of Sciences (SRTI-BAS)
  • DepartmentRemote Sensing and GIS
  • TypeResearch & Academic
  • Thematic AreaClimate changeFood SecurityOther
  • Website(s)
  • Street NameAcad. Georgi Bonchev Str.
  • Street Noblock 1
  • Postal Code1113
  • TownSofia
  • CountryBulgaria
    • 1. Which of these statements best describe your Organisation’s role in the value chain?Raw data/providerValue-adder(data process-modelling)GIS/mapping service providerEnd User with in house GIS/ mapping capabilities
    • 2. What are the main thematic areas of activity of your Organisation?Climate change (e.g. climatology- meteorology atmospheric composition- air quality- radiation)Food security (including agriculture and water extremes i.e. floods and droughts)Other
    • Other Thematic AreasDesign, development and transfer of methods, instrumentation and technologies for remote sensing of the Earth, regional and global monitoring of the environment and security
    • 3. Has your organisation participated in EO-related projects?Yes
    • 4. Has your Organisation participated in any Copernicus service provision, Copernicus User requirements definition or Copernicus Research & Innovation action?N/A
    • 5. Has your Organisation participated in any GEO/GEOSS SBA Tasks, community activities or initiatives?Yes
    • Please provide some additional information Dr. Lachezar Filchev is a national representative at GEO High Level Working Group (HLWG)
    • 6. How would you rate your Organisation’s level of collaboration with other EO actors in your country or abroad?
    • A. In your CountryHigh(>10 actors)
    • B. AbroadHigh(>10 Actors)
    • From the list below, please choose all the domains in which your organisation has capacities. 2) Ground-based/In-situ monitoring networks/facilities (of active or passive remote sensors- meteo/atmospheric/water sensors- etc)3) Modelling and computing processing capacities4) EO data exploitation for the provision of value-adding services and products
    • Ground-based/In-situ monitoring networks/facilities

    • 1. What type of ground-based/in-situ networks or facilities do you operate?Meteorological/ClimaticSoil attributes/SpectraOther (e.g. Earthquake/Landslide)
    • Meteorological/Climatic

    • Number of stations1
    • What is the geographic coverage/extent?Local
    • Number of stations1
    • What is the geographic coverage/extent?Local
    • Soil attributes/Spectra

    • Number of stationsSoil samplings on dedicated test sites
    • What is the geographic coverage/extent?Local
    • Other (e.g. Earthquake/Landslide)

    • 2. From the list below, please choose all the networks for which you systematically collect and store data. Soil attributes/SpectraOther (e.g. Earthquake/Volcanic/Landslide)
    • Soil attributes/Spectra

    • Which are the measured attributes (e.g. soil size distribution, etc)? Please specify below.

      We have for specific test sites soil samples and spectra measured with ASD field spectrometer. Soil texture and structure parameters are measured as well.

    • Are METADATA available?N/A
    • Start Year1976
    • What is the temporal resolution of data acquisition?Other
    • Other Temporal Resolution2011, 2015, 2017, 2018 field campaigns
    • Data availability/access:Upon RequestAccess to Past Archives
    • What is the main data policy applied?Other
    • Please specifySoil data can be distributed with explicit acknowledgement of the team which collected it.
    • Other (e.g. Earthquake/Volcanic/Landslide)

    • Other Data Typesvegetation (crop) - NDVI, LAI, above ground biomass (dry and wet), fAPAR, fCover, field spectra (ASD)
    • Modelling and Computing Processing Capacities

    • Model/Algorithm1

      WOFOST (modelling of crop growth) is developed by DeVit school at University ofWageningen, Alterra, the Netherlands

    • Which of the following application area(s) does the model serve? Other (e.g. Earthquake/Volcanic/Landslide)
    • Please specify the source of EO data used in the model.Geospatial data (e.g.DTM)Remote sensing data (e.g raw satellite high-level images)In situ data (e.g. temperature-pressure-humidity)
    • Please specify

      We use WOFOST for modelling of crop growth of winter wheat for selected study areas in Bulgaria. To feed the model we collect a minimum set of field (in situ) data which we run and recalibrate with a subset of this data.

    • Please list the providers of input data for the model

      Copernicus (Sentinel-2, Sentinel-3) and Copernicus Contributing Missions (PROBA-V, SPOT-Vegetation)

    • What is the geographic coverage/extent the model applies to?Local
    • Contact details of the person in charge

      Prof. Eugenia Roumenina (, Assoc. Prof. Dr. Petar Dimitrov, Assoc. Prof. Dr. Georgi Jelev

    • Does your Organisation have sufficient available computing resources for the processing and exploitation of EO data and the models running?Processing Power Capacity (CPU-RAM-Storage Capacity)
    • EO data exploitation for the provision of value-adding services and products

    • Do you deliver services / products that are based on the exploitation of EO data? No
    • Which of the following areas do your products/services cover? You can choose more than one Air Quality
    • Do you provide these products/services freely or on a commercial basis?All are provided freely
    • 1. Is there funding for EO activities available in your country? Yes
    • If yes, specify the case(s).Yes-for EO market developmentYes- for R&D
    • Please specify


    • 2. Is there a National Space Policy/Strategy? N/A
    • 3. Is there a Space Agency in your country? No
    • 4. Which of the following best describes the level of coordination of EO activities in your country? Basic
    • 5. Which of the following best describes the level of interaction between the EO community and decision makers in your country?In specific thematic areas
    • 6. Can you give examples of high impact EO dedicated workshops organized in your country in the last decade?

      In 2018 there were two major events within the EU Presidency of Bulgaria to which RS&GIS Department members took part:
      1) Copernicus Information Session and Training, 17-18 April 2018: URL:
      2) ESA Regional Workshop "Balkans from Space", 19-20 April:
      Some past events related with EO are the two GMES (pre-operational) capacity building workshops:
      3) 1st GMES Operational Capacity Workshop in Sofia, Bulgaria: 25-25 March 2010 URL:, and;
      4) 2nd GMES Operational Capacity Workshop held on 17-18 March 2011, Sofia, Bulgaria. URL:

    • 1. Would your Organisation be interested in contributing with its capacities to a regional initiative of GEO and/or Copernicus, addressing regional needs in the domains of Climate Change, Access to Raw Materials, Energy, Food Security and Water? Yes under specific conditions
    • 2. Would you be interested in providing feedback to the GEO-CRADLE consortium for establishing a roadmap for the implementation of GEO and Copernicus in North Africa, Middle East and the Balkans? Yes
    • 3. Would your organisation be interested in receiving our quarterly newsletter and/or participating in future networking events? Yes to both

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