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Finalreport

GOFC-GOLDRegionalNetworksSCERINvirtualseminaronbarkbeetledamage21-22January2021

TheseminarwasorganisedbySCERINandwasopentoallGOFC-GOLDRINs.

Thevirtualhostsoftheseminarwere:JonPadghamandClayOboth;START.Theorganizersinclude:PetyaCampbell,JanaAlbrechtová,LucieKupková,PetrLukešandMihaiNita;SCERIN.

Environment:onlineZOOMmeetingfacilitatedbyClayOboth

Theseminarwasheldduringtwoconsecutivedaysfrom(14:00-16:30CET;8:00-10:30EST)convenienttoU.S.andEuropeanparticipants.

AgendaofthemeetingduringtheDAY1,January21,2021:

Day 1 focused on short presentations of the SCERIN countries representatives on bark beetledamagestatus.ThemeetingwasopenedbytheGOFC-GOLDSTARTleadJonPadghamandattendedbytheGOFC-GOLDleadsGarikGutman,ChrisJusticeandKrishnaVadrevu,whoalsoaddressedtheparticipants and provided inputs during the discussions. After the introduction of SCERIN and itsactivitiesbyPetyaCampbell,thematiccontributionsfromBulgaria,Czechia,Croatia,Greece,Poland,Romania, Serbia, Slovenia and Ukraine were presented. Jana Albrechtová briefly introduced eachpresenter.

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TwodiscussionsessionsledbyLucieKupkováaddressedquestionsfromthechat.AttheendofDay1,aproposal for jointSCERINactivitiesand intentiontodevelopa jointmanuscriptonbarkbeetlesituationintheSCERINregionwereintroducedbyPetyaCampbellandLucieKupková,respectively.Participants expressed their intention to contribute to a joint manuscript, which Lucie Kupkovávolunteeredtolead.Participantswereencouragedtosendtheirreactionstobothproposalsbyemailbefore the next day’s session. The discussionwas lively and productive. 63 participants (includinghostsandorganizers)attendedtheseminar(seethelistofparticipantsisinAppendix2).

Background information on all speakers is provided in Appendix 1. The material presented inAppendix 1was prepared 2 days before the seminar and sent togetherwith an invitation for theseminar to allmembers of theGOFC-GOLDRINs. Themembers of RINswere asked to spread theinformationamongsttheircollaborators.

AgendaofthemeetingduringtheDAY2,January22,2021:

Day2ofthemeetingfocusedonthecurrentstateofknowledgeofremotesensingmethodsforbarkbeetledamagedetection,monitoringandpredictivemodelling.Thepresentationsincludedmultiplecase studies on bark beetle forest damage in the SCERIN region. A list of the presentations and asummary for each of them can be found in Appendix 1. Once again, Jana Albrechtová brieflyintroducedandprovidedabriefbackgroundforeachpresenter.

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TheprogramonceagainincludedtwodiscussionsessionsledbyLucieKupkováandPetyaCampbell.ThefinaldiscussionfocusedonSCERIN’sfutureactivities,includinginterestbynetworkmemberstopresent their research and discuss topics of joint interest with MedRIN at the forthcoming JointSCERINandMedRINworkshopplannedforJune2021.Intentiontoworkonajointmanuscriptofco-authors based on the bark beetle SCERIN seminar was approved by the participants and LucieKupková agreed to work on coordination of the effort. The final discussion was again lively andfruitful.ThemeetingendedwithclosingremarksfromJonPadgham.56participants(includinghostsandorganizers)attendedtheseminar(seethelistofparticipantsisinAppendix2).

Linktofolderwithpresentations:

https://drive.google.com/drive/folders/1CUXHE3_Te0kbdAWL1H2eLZrW5v9qQXIZ?usp=sharing

Linktopresenter'sinformationandtalkssummaries:

https://docs.google.com/document/d/1U6GWP6P1O8Y5NgG_-Lw_hCzc_T5L5AGVxeK9f9v5jNU/edit

Fulllistofparticipantsincludingname,affiliation,andemailaddress

FulllistofparticipantsofDay1andDay2isinAppendix2.

Partnerinstitutionsassociatedwiththeorganisationofthemeeting

• UniversityofMarylandBaltimoreCountyandNASA/GoddardSpaceFlightCenter,Greenbelt,MD,USA

• CharlesUniversity,Prague,FacultyofScience,CZ• GlobalChangeResearchInstituteofCzechAcademyofSciences(CzechGlobe,Brno,CZ)• TransylvaniaUniversityofBrasov,FacultyofSilviculture,RO

Scientificcommunicationsthatcameoutofthemeeting

BasedontheproposalpresentedduringDAY1oftheseminarbyLucieKupkováonbehalfofSCERINleaders,7participantsoftheworkshop(fromSpain,Czechia,Slovakia,Slovenia,Bulgaria)decidedtoparticipateintheproposedjointreviewarticlefocusedonRemoteSensingonbarkbeetleoutbreaksmonitoring.LucieKupkovávolunteeredtocoordinatetheSCERINeffortandcontactedinterestedcontributors.Theyreactedbyemailandsomeofthemproposedtheirpotentialfocus/roleintheframeworkofthearticle.

Futureactionsidentifiedbythenetwork

AreviewpaperledbyLucieKupkováandotherSCERINleaders,includingPetyaCampbellandJanaAlbrechtová,on“RemoteSensingonbarkbeetleoutbreaksmonitoring”willbepreparedasafollow-uptothemeetingbyparticipantswhoexpressedinterestinparticipating.Expandingbeyondasinglepaper,asuggestionwasalsomadetoconsiderproducingaspecialissueonbarkbeetleintheSCERIN

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countriestofeatureinaremotesensingjournalorappliedforestryjournal.Othertentativesuggestionsforactionitemsincluded:

• ProducingasentinelandLandsatarchiveforthelast10years,mapofsituationanditsdevelopment;

• Developinganearlywarningsystem,nestedinthepredictivemodelsthatcurrentlyexistandadvancingthosemodelsfurther;

• Expandingpredictivemodels,beginingwithalargerviewofsituation;• DevelopingaSCERINeducationalcomponentonbarkbeetledamagedetectionusingSentinel

andLandsat(developtoolsandproducts)coupledwithtraining;• OrganizingvirtualtrainingswithESAandNASAwhilenotingthechallengesofremotework/

virtualtrainingbutalsotheopportunitiesaffordedbyaremoteformattoexpandtrainingtoalargergroupofpeople.InvolvingPhDstudentsinresearchingoogleearth,processdataandotherscientificactivities.

ThenextSCERINmeetingwillbeheldtogetherwiththeMedRINnetworkinJune2021.Theform,focusandorganizationofthejointmeetingwillbediscussedbytheleadersofbothnetworksinFebruary2021.

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Picturesfromtheseminar

DAY1GroupPhoto

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DAY2GroupPhoto

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APPENDIX1:MaterialpreparedandsenttoinvitedparticipantsfromGAFC-GOLDRINsinadvance

SCERINSeminar21-22January2021(14:00-16:30CET;8:00-10:30EST)

AllGOFC-GOLDRegionalInformationNetworks(RINs)Invited

SeminarTitle:BarkBeetleDamageintheSCERINdomain-detection,monitoringand

associatedLCCdynamics

Hosts:JonPadghamandClayOboth,STARTOrganisers:PetyaCampbell,JanaAlbrechtová,LucieKupková,PetrLukesandMihaiNita,SCERIN

ZOOMLinktojoinhttps://us02web.zoom.us/j/88400774541,active½hourbeforethestart

Group photos of seminar participants will be taken each day after break

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IntroductionofSeminarPresenters

Bulgaria

LachezarFilchev isanAssociateProfessorandHeadoftheRemoteSensingandGISDepartmentattheSpaceResearchandTechnologyInstitute,BulgarianAcademyofSciences(SRTI-BAS).HeholdsaM.Sc.inPhysicalGeographyandLandscapeEcology(2006,"St.KlimentOhridski"UniversityofSofia)andaPhDin"RemotesensingoftheEarthandplanets"(2012,BAS).HismainresearchinterestsareintheapplicationsofopticalremotesensingandGISinlandscapeecologyandvegetationstudies.Heisamemberofspecial interestgroups(SIGs)ofEARSeLandInternationalGeographicalUnion(IGU)onlanduselandcoverchange(LULCC);ofeditorialboardsofjournals:EuropeanJournalofRemoteSensing,AerospaceResearchinBulgaria,andRemoteSensingofLand.HeisaCopernicusAcademycontactpersonofSRTI-BASandanalternateoftheBulgarianrepresentativeattheCopernicusUserForum (CUF). He is also one of the Bulgarian representatives at GEO High Level Working Group(HLWG) at EC. Since 2019 he is a member of theMission Board “Soil health and food” (HorizonEurope,EC,2021-2027).

CzechRepublic

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Olga Brovkina is a scientist at theDepartment of Remote Sensing at theGlobal Change ResearchInstituteCAS(CzechGlobe),Brno.SheheldaPhDin“AerospacemethodsforEarthresearch”(2011,Russian Academy of Sciences). Her main research interests are in processing and application ofairborne hyperspectral and satellite multispectral data for: estimation of forest/tree inventoryparameters,monitoringoflandscapedisturbances,andcomplexassessmentofecosystemstate.

FilipHájekisaremotesensingexpertandtheleadinganalystattheDepartmentofphotogrammetryand remote sensing of Forest management institute (FMI), Czech Republic. His background isforestry, but has experience also with the remote sensing analysis of vegetation and landuse/landcover since 2002. At FMI, he started the remote sensing support of the National ForestInventory(NFI2-since2010)andestablishedthephotogrammetrygroupofbothvisualstereoscopicinterpretation, and automated analysis of 3D andmultispectral Earth observation data. Themainresults of this group include repeated stereoscopic assessment of the NFI plots and countrywide(wall-to-wall) maps of woody vegetation, periodic detection of timber cutting, tree speciescomposition,foresthealthstatusandbark-beetleinfestation.

Petr Lukeš is a scientist at the Department of Remote Sensing at the Global Change ResearchInstitute CAS (Czechglobe, Brno) and remote sensing developer at Forest Management Institute(FMI),CzechRepublic.He receivedhisPhDat theMendelUniversity inBrno in2012witha thesisfocused on retrieval of forest quantitative parameters from satellite data using radiative transfermodels.Hismain scientific interests include remote sensingof vegetationwithparticular focusonsatellitedatainterpretation,radiativetransferinforestcanopiesandleafopticalproperties.

PřemyslŠtychAssociateProfessorattheDepartmentofAppliedGeoinformaticsandCartographyofFacultyofScience,CharlesUniversity,Prague.HisfieldofinterestisLandUse/LandCoverChange,GIS, Earth Observation and regional geography. He has been a coordinator of severalinternationalprojects,e.g.7thFPProjects,ERASMUS+orH2020.

Croatia

Ivan Pilas is a senior researcher (scientific advisor) in the Division of ecology, Croatian ForestResearch Institute. He has a Ph.D. (2006) in silviculture in the Faculty of Forestry, University ofZagreb.Hisbasicexpertisehasbeen soil genesis, classificationandmonitoring, lowlandhydrology,monitoringandmodellingofthegroundwaterprocessesinhydromorphicsoilsandtheirimpactsonforests.HewasalsoinvolvedindepositionandsoilsolutionstudiesasanationalexpertintheUNECEICP Forest Programme. He was a secretary of the Croatian Soil Science Society and IUFRO –INTERNATIONAL COUNCIL – Alternate representative Croatia. Recently he participated in variousinternational projects; IPA Adriatic “HOLISTIC- seismic and wildfire risks”, INTERREG CROATIA -HUNGARY– “Oakprotection”, “Advanced FORest ENvironmental ServicesAssessment-AFORENSA”,H2020project“MySustainableForest”-Earthobservationforsilviculture.

Greece

Prof.IoannisGitasisDirectoroftheLaboratoryofForestManagementandRemoteSensingandtheChairman of the Aristotle University Forest Administration and Management Fund. Ioannis, anelectedfellowoftheCambridgePhilosophicalSociety,receivedhisPhDandMPhildegreesinGISandRemote Sensing from the Department of Geography, Cambridge University U.K. His research hasfocusedonremotesensingandGISapplicationsinenvironmentalmonitoring.Heistheauthororco-authorofmorethan200papersinpeer-reviewedjournalsandinternationalconferences.Prof.Gitas

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isanAssociateEditorofMDPIRemoteSensing,MDPIEarthandPeerJjournalsandhaseditedspecialissuesforanumberofhighimpactfactorjournals.IoannisiscurrentlytheChairoftheEARSeLSIGonForest Fires, the FAO Forest Resources Assessment – Remote Sensing Survey contact point forGreece,amemberoftheGOFC-GOLDFireImplementationTeam,amemberofGEO’sGWIS,andthefirsttermco-leaderoftheNASALCLUCMediterraneanRegionalInformationNetwork(MedRIN).

Asterios Tselepis is currently a postgraduate student at the School of Agriculture, Forestry andNaturalEnvironmentthatbelongstoAristotleUniversityofThessaloniki inGreece.HereceivedtheMaster’s Degree in Environmental Protection and Sustainable Development from the AristotleUniversity of Thessaloniki, Greece. Asterios is anHCAACertifiedUAS Pilot. His interests extend toremotesensingmethodsandtheuseofnewtechnologiesforenvironmentalmonitoring.

Dimitrios N. Avtzis (Dr. rer. nat. / FRES) is Main Researcher in Forest Entomology (FRI – HAODemeter)since2010.Hehasparticipatedandcoordinated7internationaland12nationalresearchprojects,andhaspublished55articlesinSCIjournals.Hehasnumerouscontributionsinnationalandinternational conferences, and has served both as Reviewer and Editor in high ranked journals inForestEntomologyandBiologyingeneral.

Poland

PiotrWężyk isaUR professor at LaboratoryofGeomatics,Dept.ofForestResourcesManagement,Faculty of Forestry, University of Agriculture in Krakow, Poland. Professional experience ininternational research and development projects on: LiDAR, GIS, UAV-Photogrammetry, RemoteSensing, ImageProcessing (GEOBIA)andGNSSapplications in:monitoringandmanagementof theforest environment, nature protection, natural hazards in forestry. Chairman of the SIG ForestryEARSeLandFORESTSAT2020.Involvedinseveralnational-wideprojectsinPoland:trainingofusingtheaerialphotos (PHAREPL1997-98),LiDAR(GUGiK2015)andRemoteSensingapplication(2020,PAK), Geoportal.gov.pl (INSPIRE), Information System of Country Protection Against ExtraordinaryHazards (ISOK) and cooperation with: Ministry of Environment, Head Office of Geodesy andCartography,Polish State Forest,GeneralDirectorateofNatureProtection,NationalParks and thepublicadministrationbodies.

Romania

Mihai-DanielNiță isaProfessorattheFacultyofSilviculture,theTransylvaniaUniversityofBrasov.HissubjectsareRemoteSensing,GISandWatershedManagement.Asaresearcherheisinvolvedinprojectsregardingforestmanagementandmonitoring,mainlyasRS-GISexpertontopicslikeLULUCF(landuse,land-usechange,andforestry)usingremotesensinganddronemapping,modelinghabitatdistributionsforspeciesandevaluatingForestEcosystemServices(FES).

MariusParaschivisaforestentomologist.HehasbeenworkingintheForestProtectionDepartmentatNationalInstituteforResearchanddevelopmentinForestryfromBrasov-Romaniasince2015.Hiscurrent work focuses on conifer pests - bark beetle, defoliators and weevils. He also has aspecialization in nursery quarantine pathogens and invasive species. Was involved in EuropeanprojectslikeCostActionsandhehascontributionsinnationalandinternationalconferencesandhasservedasReviewerjournalsinForestryandEntomology.

Serbia

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MinučerMesarošisanAssociateProfessorattheFacultyofSciences,UniversityofNoviSad,wherehe is the head of the Geoinformatics Study Program. He received his PhD in Geoscience at theUniversityofSzeged,Hungary.HismainresearchinterestisapplicationofGIS,remotesensingandmachinelearninginmultidisciplinaryresearchofenvironmentalproblems,naturalhazards,climatechangeandEarthSystemScience.Hecoordinatedandparticipatedininternationalprojectsrelatedtoresearchofdroughts,inlandfloodingandclimateextremes(IPAInterreg,H2020).

DejanStojanovićisSeniorResearchAssociateattheInstituteofLowlandForestryandEnvironment,University ofNovi Sad, Serbia,where hehas been employed since 2012.Dr. Stojanovic graduatedfromtheFacultyofSciences in2010. In2014,hedefendedhisPhD thesisat the same faculty.Dr.Stojanovichasbeenworking ina researchgroup for forestecology,dendrochronologyandclimatechange impacton forests.Hehas co-authoredmore than25papers in impact journalpaperswithmorethan800citations.Hehasbeen involved innumberdomesticand internationalprojects (e.g.IPA,COST,andInterregDanube).

Slovenia

MaartendeGrootisaresearcheremployedattheDepartmentofForestprotectionattheSlovenianForestry Institute.He isa forestentomologistwith research interests in identifyingdriversof largescale insect outbreaks and insect invasions, ecological modeling and integrated forest pestmanagement. He is involved in predictivemodeling of bark beetle outbreaks for the forest publicservice, an editor for the on-line journal Forecasts in Forest health, leading several national andinternationalprojectsandcoordinatorofseveralsurveyprogramsofquarantinepests.

Nikica Ogris employed at Department of Forest protection at Slovenian Forestry Institute for 19years.Heisforestpathologist,foresthealthexpert,expertforecologicalmodellingandmodellingofforesthealthissues,custosofMycothecaandHerbariumofSlovenianForestryInstitute,editoroftheon-line journal Forecasts about forest health and the journal News from forest protection, guesteditor at the journal Forests, software developer, SQL Server and ArcGIS Server Administrator,developerandadministratorformanyinformationsystems,e.g.ForestProtection,Invazivke,Boletusinformaticus,DanubeForestHealth,Zdravko.

AndrejKoblerisaresearchfellowattheSlovenianForestryInstitute.HegraduatedinforestryattheBiotechnicalFaculty,UniversityofLjubljana (ULBF) in1995, receivedhisMSc inspatialplanning in2001atULBF,andhisPhDinremotesensingatFacultyofCivilandGeodeticEngineering,UniversityofLjubljana(ULFGG)in2011.Hisresearchinterestsarefocusedonmodel-basedmappingofforest-andsemi-naturalecosystemsusingremotelysenseddataandancillarydata.Heistheauthorandco-authorofover140scientificpublicationsinjournalsandatinternationalconferences.

MitjaSkudnikisaresearcherintheDepartmentofForestandLandscapePlanningandMonitoringatSlovenian Forestry Institute and an associate lecturer at the University of Ljubljana, BiotechnicalFaculty,DepartmentofForestryandRenewableForestResources.Hisresearchfocusesontheforestmonitoring concepts and ecologicalmodeling. At the SFI, he is responsible for the organization ofNational Forest Inventory (NFI) (methodology, calculation, datamanagement). Additional researchfocuses are on forest mensuration, ecological monitoring, remote sensing and geographicinformationsystemanalysis.

Tatjana Veljanovski is a research fellow at the Department of Remote Sensing at the ResearchCentreoftheSlovenianAcademyofSciencesandArts.SheholdsaPhDinremotesensing(University

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of Ljubljana, Faculty of Civil and Geodetic Engineering). She works on data preprocessing,interpretation and applications of remote sensing data. Hermain research interest is in detectionand monitoring of natural disasters, the landscape development, disturbances and changes. SheparticipatesinseveralnationalandinternationalprojectsinthefieldofremotesensingandGIS.

Spain

Ángel Fernández is an Earth Observation Engineer at GMV. Ángel holds a BSc in Geography andSpatialPlanningfromtheUniversityofSeville(2016),aMScinGeographicInformationTechnologies(2017)andaMScinDeepLearning(2019),fromtheUniversityofAlcalá.Hehas5yearsofexperienceinremotesensingofvegetation,ArtificialIntelligenceandMachineLearningapplicationsforsatelliteimagery. In 2016 heworked as a remote sensing intern at the Spanish National Research Council(CSIC)and in2017-2018heheldapositionas researchassistantat theUniversityofAlcalá.Duringthistime,hisresearchactivitywasfocusedinburnedareadetection,fireseverityandforestrecoveryusing remote sensing andMachine Learning algorithmswithin the ESA’s Climate Change Initiativeand the Copernicus CS3 project. At GMV he works at developing novel AI-based algorithms toprovidegeo-informationservicesforsustainableforestmanagement(MySustainableForestproject).

Ukraine

Oleh Chaskovskyy is Associate Professor at the Department of Forest Inventory and ForestManagementdepartmentatUkrainianNationalForestryUniversity(Lviv,Ukraine).Hehasexpertiseinautomaticprocessingofimagesandmethodicalbasesoftheiruseatforestinventory,applicationofmethodsof satellite imageprocessing for thepurposesofproblemsof forest inventory.HealsohasexperienceinGIS-Modelingindifferentareasofnationaleconomy.TheresearcherhasaPhDinthe fieldof forest inventory.Hewasaparticipantofa few internationalprojects, leaderofprojectDIABOLO (Distributed, Integrated and Harmonized Forest Information for Bioeconomy Outlooks,Horizon-2020)andwasaparticipantandleaderofinternalUkrainianprojects,supportedundertheMinistryofEducationandScienceofUkraine.

SerhiiHavryliukisanAssociateProfessorofForestInventoryandForestManagementDepartmentatUkrainian National Forestry University (Lviv, Ukraine). Ph.D. (Candidate of Science) in AgriculturalSciences(ForestManagementandForest Inventory),DeputyofDirectorofEducationandResearchInstitute of Forestry and Park Gardening. He had published more than 40 articles includinginternational journalswhich are indexing in SCOPUS andWeb of Science. Dr. Havryliuk had somescientific trainings at EU universities and organizations like WSL, Freie University, University ofFreiburg,etc.Hewasaparticipantinfewinternationalprojects,likeQUARSU,DIABOLO(Distributed,IntegratedandHarmonizedForestInformationforBioeconomyOutlooks,Horizon-2020),FORZAandwas a participant and leader of internal Ukrainian projects, supported under the Ministry ofEducation and Science of Ukraine. Serhii Havryliuk’s areas of scientific interest are using GIS andremotesensingdatainforestry.

SCERINCoordinatorsPetya Campbell, SCERIN US Coordinator, Associate Research Professor at University of MarylandBaltimore County and at NASA/Goddard Space Flight Center, Greenbelt,MD, USA. Dr. Campbell’sresearch combines forest ecology and silviculture with plant physiology and remote sensing. Herexperience includes collaborative interdisciplinary research in remote sensing for assessment of

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vegetation function and early detection of vegetation stress based on its spectral reflectance,fluorescenceandthermalcharacteristics.

Jana Albrechtová, is a Professor at Charles University (CU), Faculty of Science in Prague, CzechRepublic,DepartmentofExperimentalPlantBiology.Herresearchfocusesonplantecophysiologicalstudiesemployingplantanatomy,physiology,spectroscopywithemphasisgiventomultidisciplinaryapproaches. Long-term, she has been studying the monitoring of the physiological status ofvegetation using remote sensingmethods. She collaborates with GOFC-GOLD and START, being aEuropeanleaderofSCERIN(South,CentralandEasternRegionalNetwork)https://www.scerin.eu/

LucieKupková, isanAssociateprofessoratCharlesUniversityPrague,FacultyofScience,aheadofthe Department of Applied Geoinformatics and Cartography. She is focused mainly on landscapechange evaluation, vegetation classification/change detection and health status evaluation usingdifferent types of optical remote sensing data (including data from UAV), image and laboratoryspectroscopy. She is coordinator of SCERIN (The South, Central and East European RegionalInformationNetwork)oftheGlobalObservationofForestandLandCoverDynamics(GOFC-GOLD),amemberofSteeringCommitteeof InternationalGeographicalUnion,CommissiononLandUseandLand Cover Change, and a member of Eurosite Remote Sensing Support Group for conservationpractitioners.

SummaryofthepresentationsofDay2

1.PetrLukeš lukes.p@czechglobe.cz

Title:EarlydetectionofbeetleinfestationsusingdensetimeseriesofSentinel-2data

Authors:VojtěchBárta,PetrLukeš,LucieHomolová(GlobalChangeResearchInstituteCAS,Brno,CzechRepublic)

Summary:ThisstudyinvestigatesthepotentialforusingseasonaltrajectoriesofSentinel-2bandsandselectedvegetationindicesinearlydetectionofbarkbeetleinfestation(socalledgreen-attackstagedetection) in Norway spruce monoculture forests in the Czech Republic. The algorithm for earlydetectionof tree infestationbasedon theassessmentof seasonal changes inTCWwasappliedonthe time series of Sentinel-2 image observations from autumn 2019 and its outputs weresubsequently verified using field observations of forest conditions conducted on 80 spruce forestplots. The overall accuracy of 78% was achieved for the separation of healthy and green-attackclasses,while the later redandgreyattackstageswereclassifiedwithaccuracieshigherthan90%.Our study highlights the importance of multi-temporal remote sensing and the use of shortwaveinfraredwavelengthsforearlydetectionofspruceforestdeclinecausedbybarkbeetleinfestation.

2.MihaiNitanita.mihai.daniel@gmail.com

Title:BarkbeetledetectionfromUAV

Authors:MihaiNitaandMariusParaschiv

Summary: This studywas performed in the CarpathianMountains, located in central Romania, anareacoveredwithconiferousforests,mainlyspruce.Thisworkaimedtoevaluatethepossibilitiesofthe unmanned aerial vehicle (UAV)-mounted low-cost RGB to identify infested trees or clusters of

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treesusingveryhighresolutionorthomosaicandpointcloudsextractedusingStructurefromMotionAlgorithm.Weusedasegmentationmethodtomaptreesorclustersoftreesaffectedbybarkbeetleattacks.Weset-upaprotocolbasedon2 tiers (satelliteandaerial) tobeusedby forestmanagersanddecision-makersincontrollingandmitigatingthebarkbeetledamageeffects.

3.AndrejKoblerandNikicaOgris andrej.kobler@gozdis.si;nikica.ogris@gozdis.si

Title:Scalingbarkbeetledamagefromthecountry-toregional-andlocal-levels

Authors:A.Kobler,A.Kavčič,M.Čater,Š.Planinšek,J.Žlogar,T.Veljanovski,P.Pehani,Ž.Kokalj,M.Kolšek,K.Kunc,P.Čadež,M.Kozamernik,M.Petretič,G.Senegačnik,B.Slabanja,K.Zalokar,M.Kobal,J.Moderc,J.Langus,R.Valič,P.Gernot,N.Ogris

Summary:Weemployedmachine-learnedrandomforestmodelsusingremotesensingdataatthreespatialscalestopredictordetectbarkbeetleattacksinspruceandfirforestsinSlovenia.Firstly,atthe country level we used yearly time series (2002 – 2018) of MODIS NDVI and EVI 16-daycomposites, contemporarymeteorologicaldata,and reliefelevation, topredictamountofgrowingstocklosttobarkbeetleinthenextyear.Themodelwaslearnedusingyearlyaggregationsofforestcompartmentleveldataonsanitaryfelling.Secondly,attheregionallevelweused10-daytimeseriesof20-meter Sentinel-2AandSentinel-2Bdata todetect recentbarkbeetleattackat resolutionsofsinglepixel,3x3pixels,and5x5pixels.Themodelwastrainedusingfield-acquireddate-andlocationdataofgrowingstockattacked.Thirdly,weclassifieddifferentstagesofon-goingbarkbeetleattack(targetvariables:treecrowndiscolorationanddefoliation)atthesingletree levelusingUAV-basedMicaSenseimagery,aggregatedwithinthetreecrownsegments.Themodelsweretrainedontree-levelfieldinventoryof15hotspots.Aclassificationaccuracyof74.7%fortreecrowndiscolorationwasachieved,and51.1%fordefoliation.ItisourviewthatusingUAV-basedhyperspectralimagerywouldfurtherimprovethedetectionofearlyattackstages.Still,weconcludethatduringbarkbeetleseason a repetitive UAV-based sub-meter RGB-IR inventory of bark beetle would have beneficialfinancialimplications.Evenamodestimprovementofearlydetectionofsolitarytreeattacks,whichareoftenhard todetect fromtheground, shouldensureadecrease in thenumberof-andsizeoflargeareaattacksandthusenableconsiderablefinancialsavings.

4.OlgaBrovkinabrovkina.o@czechglobe.cz

Title:Sprucedeclinemonitoringusinghyperspectralairbornedata

Authors:BrovkinaO.,NovotnýJ.,FabiánekT.(GlobalChangeResearchInstituteCAS,Brno,CzechRepublic)

Summary: Themethod for identificationof sprucehealth decline fromairbornehyperspectral andlidardataispresented.Thepotentialoftime-seriesairbornehyperspectraldataisexploredtotrackthe changes in spruce health decline. A composite indicator is proposed to identify categories ofsprucehealthdecline:healthy,initialdecline,andinitialtomoderatedecline.

5.MaartendeGrootandNikicaOgris maarten.degroot@gozdis.si;nikica.ogris@gozdis.si,

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Title:Predictivemodelingofbark-beetleoutbreaksandlinkstoremotesensing

Authors:MaartendeGroot,NikicaOgris

Summary:Inthelastdecades,barkbeetleoutbreakshavebecomemorefrequentandmoreintensiveduetocatastrophicweatherevents.WepresentheretwomodelingmethodswhichareimplementedintheSlovenianforestryandhowtheyareandcanbeconnectedtoremotesensing.Thefirstmethodusedhereisageneralizedlinearmodelonbasisofforest,soil,DEM,andweathercharacteristicsandwepredicttheprobabilityofanoutbreaksofbarkbeetlesonNorwayspruceandsilverfir.ThesecondmethodisphenologicalpredictionwiththeRITYandCHAPYmodelfortheIpstypographusandPityogeneschalcographus,respectively.ForthesemodelsINCAdataisusedwhichanalysispartofthesystemcombinessurfacestationdatawithremotesensingdatainsuchawaythattheobservationsatthestationlocationsarereproduced,whereastheremotesensingdataprovidethespatialstructurefortheinterpolation.Thesemethodscanbeusedforthelocalizationandthetimingofremotesensing,whichcanbethenusedfor(early)detectionofbarkbeetleoutbreaks,theiramountanddistribution.

6.PiotrWezykwezyk.piotr@gmail.com;piotr.wezyk@urk.edu.pl’

Title:UsingLiDARandphotogrammetryapproachforbarkbeetleinfestationdetection

Authors:PiotrWężyk,WojciechKrawczyk(wojciech.kravchyk@gmail.com),KarolinaZięba-Kulawik(karolina.anna.zieba@gmail.com)

Summary: The presentation concerns the use of LiDAR point clouds and those generated byphotogrammetricmethods (IPC,matching) from aerial photos (also UAV) in the analysis of forestareaswithgradationsofinsectsfromsecondarypests.IntheanalysisofCIRaerialorsatelliteimagesofconiferousstandswiththebarkbeetleaswellasunfavorableabioticandanthropogenicfactors-sofarwehaveusedmainlyspectralinformationrelatedtothecontentofphotosytheticpigmentsorthe anatomical structure of leaves/needles. Advanced image recognition (e.g. GEOBIA) may,however,useadditionalinformationrelatedtotheverticalstructureofvegetation:statisticsoftreeheight (e.g. changes in the99thpercentileof theALSpoint cloudofa standalongwith itsdecay),crownclosure,penetrationandother features likeCRR.Thegeometric features, togetherwith the"spectral" information (also (LiDAR Int.) may serve to better understand the forest standsdegradationprocesses.

7.PremyslStychstych@natur.cuni.cz

Title:AComparisonofWorldView-2andLandsat8ImagesfortheClassificationofForestsAffectedbyBarkBeetleOutbreaksUsingaSupportVectorMachineandaNeuralNetwork:ACaseStudyintheSumavaMountains

Authors:PremyslStych,JosefLastovicka,DanielPaluba

Summary:TheobjectiveofthispaperistoassessWorldView-2(WV2)andLandsatOLI(L8)imagesinthedetectionofbarkbeetleoutbreaksintheSumavaNationalPark.WV2andL8imageswereused

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fortheclassificationofforestsinfectedbybarkbeetleoutbreaksusingaSupportVectorMachine(SVM)andaNeuralNetwork(NN).Afterevaluatingalltheavailableresults,theSVMcanbeconsideredthebestmethodusedinthisstudy.ThisclassifierachievedthehighestoverallaccuracyandKappaindexforbothclassifiedimages.InthecasesofWV2andL8,totaloverallaccuraciesof86%and71%andKappaindicesof0.84and0.66wereachievedwithSVM,respectively.TheNNalgorithmusingWV2alsoproducedverypromisingresults,withover80%overallaccuracyandaKappaindexof0.79.Themethodsusedinthisstudymaybeinspirationalfortestingothertypesofsatellitedata(e.g.,Sentinel-2)orotherclassificationalgorithmssuchastheRandomForestClassifier.

8.AngelFernandez-Carrilloaafernandez@gmv.com

Title:UsingSentinel-2dataforbarkbeetledamagedetectionintheCzechRepublic

Authors:AngelFernandez-Carrillo1,ZdeněkPatočka2,LumírDobrovolný3,AntonioFranco-Nieto1andBeatrizRevilla-Romero1

1RemoteSensingandGeospatialAnalyticsDivision,GMV(Spain);2DepartmentofForestManagementandAppliedGeoinformatics,FacultyofForestryandWoodTechnology,MendelUniversityinBrno(CzechRepublic);3UniversityForestEnterpriseMasarykForestKřtiny,MendelUniversityinBrno(CzechRepublic)

Summary:TheareaattackedbythebarkbeetleIpstypographushassteadilyincreasedinEuropeoverthelastyears,leadingtoimportanteconomicandenvironmentallossesinareasweretheforestrysectorplaysakeyrole.Thequickextensionofthispesthinderstheimplementationofmanagementactionsaimingatpreventingandmitigatingthedamagecausedbytheinsect.RemoteSensingisavaluabletoolforforestdamagemonitoringasitprovidesperiodicdataonvegetationcondition.InthisworkwepresentacasestudyoftheuseofArtificialIntelligencetoproducebarkbeetledamagemapsusingopendatafromSentinel-2satellitesinspruceforestsoftheCzechRepublic.Thefinalmapsshowdifferentlevelofimpact(minor,moderateandsevere)withaspatialresolutionof10m.AnovelapproachtoperformearlydetectionofbarkbeetlewithSentinel-2isalsoexplored.TheworkpresentedispartofMySustainableForestproject(H2020-776045).

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APPENDIX2ListofparticipantsduringtheDAY1:63participants

Name Affiliation Adéla Šedová Charles University, CZ Adrian Lorent INCDS, Romania Aleksei Trubin CZU, CZ Alexander Ariza RedLatif, UN-Spider Alexandra Stefanidou Aristotle University of Thessaloniki Ana Potočnik Buhvald UL FGG Andrej Kobler Slovenian Forestry Institute Ángel Fernández GMV, MySustainableForest Anisoara Irimescu MeteoRomania Argyrios Stergioudis Aristotle University of Thessaloniki Asterios Tselepis FMRS - AUTh Barta Vojtech UVGZ Chris Justice UMBC, Maryland USA, LCLUC Program Clay Oboth START Darko Pleskalt Croatian forest Ltd. Dmitry Schepaschenko IIASA Ella Sèdé Maforikan University of Gambia Eva Neuwirthová Charles University, CZ Filip Hajek FMI Czech Garik Gutman NASA HQ, LCLUC Program Manager George Boldeanu Meteo Romania Giorgi Ghambashidze CAUCRIN, SRCA Ioannis Gitas AUTh Ioannis Manakos CERTH Ivan Pilas Division of Ecology, Croatian Forest Research Institute Jan Novotný Mendel University, CZ Jana Albrechtova Charles University, CZ, SCERIN Jaroslav Čepl Czech University of Live Sciences - Prague, CZ Jon Padgham START Khoda Zabihi, Ph.D. Research Scientist, EXTEMIT-K Project, CULS Krishna Vadrevu START, NASA LCLUC Program Krištof Oštir UL FGG Lachezar Filchev SRTI-BAS, BG Liza Stanic ZRC SAZU, Slovenia Lucie Cervena Charles University, CZ Lucie Homolova Global Change Research Institute, Czech Academy of Sci., CZ Lucie Kupkova Charles University, CZ, SCERIN leader Marius Paraschiv National Insitute for R&D in Forestry Romania Markéta Potůčková Charles University, CZ

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Matej Račič Univrsity of Ljubljana, Slovenia Mesaros Minucer University of Novi Sad, Serbia Mihai Daniel Nita Transylvania University, Ro Mitja Skudnik SFI - Slovenia Monika Anna Tomaszweska Michigan State University, USA Niki Ogris Slovenian Forestry Institute, Department of Forest Protection Oleh Chaskovskyy UNFU, Ukraine Olga Brovkina Global Change Research Institute, Czech Academy of Sci., CZ Paulo Victorino INPE (Brazil) Petr Lukes Global Change Research Institute, Czech Academy of Sci., CZ Petya Campbell UMBC + NASA GSFC, SCERIN leader Piotr Wezyk Faculty of Forestry, University of Agriculture in Krakow, Poland Ratislav Jakus Czech University of Live Sciences - Prague, CZ Roman Modlinger Czech University of Live Sciences - Prague, CZ Rumiana Vatseva NIGGG BAS, BG Růžena Janoutová Global Change Research Institute, Czech Academy of Sci., CZ Serhii Havryliuk UNFU, Ukraine Tatjana Veljanovski ZRC SAZU, Slovenia Ursa ZRC SAZU, Slovenia Vince Ambrosia (NASA-Ames / CSUMB) Vladimir Starodubtsev National University of Life and Environmental Sciences of Ukraine Zdeněk Patočka MENDELU, MySustainableForest project Zuzana Lhotakova Charles University, CZ

ListofparticipantsduringtheDAY2:56participants

Name Affiliation Aleksei Trubin CzechUniversityofLiveSciences-Prague,CZ

Ana Potočnik Buhvald UL FGG, slovenia

Andrej Halabuk Institute of Landscape Ecology, Slovak Academy of Sciences, Slovakia

Andrej Kobler Slovenian Forestry Institute, Ángel Fernández GMV, MySustainableForest, Spain Anisoara Irimescu MeteoRomania, Romania Argyrios Stergioudis Aristotle University of Thessaloniki, Greece Asterios Tselepis FMRS - AUTh, Greece Barta Vojtech Global Change Research Institute, Czech Academy of Sci., CZ Cezary Poland Clay Oboth START Darko Pleskalt Croatian forest Ltd. Dmitry Schepaschenko IIASA, Ukraine Eva Neuwirthová Charles University, CZ Garik Gutman NASA HQ, LCLUC Program Manager

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George Boldeanu Meteo Romania Giorgi Ghambashidze CAUCRIN, SRCA Ioannis Manakos CERTH, Greece Ivan Pilas Division of Ecology, Croatian Forest Research Institute Jan Novotný Mendel University, CZ Jana Albrechtova Charles University, CZ, SCERIN leader Jon Padgham START Karolina Zieba-Kulawik UoA in Krakow, Faculty of Forestry Khoda Zabihi, Ph.D. Research Scientist, EXTEMIT-K Project, CULS Krishna Vadrevu START, NASA LCLUC Program Lachezar Filchev SRTI-BAS, Bulgaria Lena Hunt Charles University, CZ Liza Stanic ZRC SAZU, Slovenia Lucie Cervena Charles University, CZ Lucie Homolova Global Change Research Institute, Czech Academy of Sci., CZ Lucie Kupkova Charles University, CZ, SCERIN leader Maarten de Groot Slovenian Forestry Institute Marius Paraschiv National Insitute for R&D in Forestry, Romania Michał Fabiszewski Biebrza National Park, Poland Mihai Daniel Nita Transylvania University, Romania Monika Anna Tomaszweska Michigan State University, USA Natalia Kobliuk Charles University, CZ Niki Ogris Slovenian Forestry Institute, Department of Forest Protection Nina Šramel Slovenian Forestry Institute Oleh Chaskovskyy UNFU, Ukraine Olga Brovkina Global Change Research Institute, Czech Academy of Sci., CZ Petr Lukes Global Change Research Institute, Czech Academy of Sci., CZ Petya Campbell UMBC + NASA GSFC, SCERIN leader Piotr Wezyk Faculty of Forestry, University of Agriculture in Krakow, Poland Premek Stych Charles University, CZ Rastislav Jakuš Czech University of Live Sciences - Prague, CZ Roman Modlinger Czech University of Live Sciences - Prague, CZ Růžena Janoutová Global Change Research Institute, Czech Academy of Sci., CZ Serhii Havryliuk UNFU, Ukraine Tatjana Veljanovski ZRC SAZU, Slovenia Viktoria Takacs University of Life Sciences, Institute of Zoology, Poznan, PL Vince Ambrosia (NASA-Ames / CSUMB) Wojciech Krawczyk UoA Cracow, PL Zdeněk Patočka MENDELU, MySustainableForest project, CZ Zuzana Lhotakova Charles University, CZ