diff --git a/public/tree/tree_BT1.xml b/public/tree/tree_BT1.xml
deleted file mode 100644
index 931d7fb..0000000
--- a/public/tree/tree_BT1.xml
+++ /dev/null
@@ -1,150 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Spase xmlns="http://www.spase-group.org/data/schema"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://www.spase-group.org/data/schema/spase-sim-1_0_0.xsd">
-    <Version>2.2.2</Version>
-    <SimulationModel>
-        <ResourceID>spase://IMPEX/SimulationModel/IRAP/CPEMv2</ResourceID>
-        <ResourceHeader>
-            <ResourceName>CPEMv2</ResourceName>
-            <ReleaseDate>2018-05-21T00:00:00.000</ReleaseDate>
-            <Description>
-                Corotation Plasma Environment Model
-            </Description>
-            <Contact>
-                <PersonID>Benjamin Torn</PersonID>
-                <Role>DataProducer</Role>
-            </Contact>
-            <InformationURL>
-                <URL>https://ieeexplore.ieee.org/document/8361988</URL>
-                <!--  a remplacer  -->
-            </InformationURL>
-        </ResourceHeader>
-        <SimulationType>Analytic</SimulationType>
-        <CodeLanguage>Python3</CodeLanguage>
-    </SimulationModel>
-    <Repository>
-        <ResourceID>spase://IMPEX/Repository/IRAP</ResourceID>
-        <ResourceHeader>
-            <ResourceName>CPEMv2 Plasma Density</ResourceName>
-            <ReleaseDate>2018-05-21T00:00:00.000</ReleaseDate>
-            <Description/>
-            <Contact>
-                <PersonID>Benjamin Torn</PersonID>
-                <Role>DataProducer</Role>
-            </Contact>
-        </ResourceHeader>
-        <AccessURL>
-            <URL>http://www.irap.omp.eu</URL>
-        </AccessURL>
-    </Repository>
-    <SimulationRun>
-        <ResourceID>spase://IMPEX/SimulationRun/IRAP/CPEMv2/test1</ResourceID>
-        <ResourceHeader>
-            <ResourceName>CPEM_test1</ResourceName>
-            <ReleaseDate>2018-12-03T00:00:00.000</ReleaseDate>
-            <Description/>
-            <Contact>
-                <PersonID>Benjamin Torn</PersonID>
-                <Role>DataProducer</Role>
-            </Contact>
-        </ResourceHeader>
-        <Model>
-            <ModelID>spase://IMPEX/SimulationModel/IRAP/CPEMv2</ModelID>
-        </Model>
-        <TemporalDependence>No</TemporalDependence>
-        <SimulatedRegion>Jupiter</SimulatedRegion>
-        <LikelihoodRating>Probable</LikelihoodRating>
-        <SimulationTime>
-            <Duration>PT2072.854S</Duration>
-            <TimeStart>00:00:00</TimeStart>
-            <TimeStep>PT0.115S</TimeStep>
-        </SimulationTime>
-        <SimulationDomain>
-            <CoordinateSystem>
-                <CoordinateRepresentation>Cartesian</CoordinateRepresentation>
-                <CoordinateSystemName>JSO</CoordinateSystemName>
-            </CoordinateSystem>
-            <SpatialDimension>3</SpatialDimension>
-            <VelocityDimension>0</VelocityDimension>
-            <FieldDimension>3</FieldDimension>
-            <Units>km</Units>
-            <CoordinatesLabel>X Y Z</CoordinatesLabel>
-            <ValidMin>-2144760. -2144760. -2144760.</ValidMin>
-            <ValidMax>2144760. 2144760. 2144760.</ValidMax>
-            <GridStructure>Constant</GridStructure>
-            <GridCellSize>35746. 35746. 35746.</GridCellSize>
-            <Symmetry>Axial</Symmetry>
-        </SimulationDomain>
-        <RegionParameter>
-            <SimulatedRegion>Jupiter</SimulatedRegion>
-            <Radius Units="km">71492.00</Radius>
-        </RegionParameter>
-    </SimulationRun>
-    <NumericalOutput>
-        <ResourceID>
-            spase://IMPEX/NumericalOutput/IRAP/CPEMv2/test1/plasma_density
-        </ResourceID>
-        <ResourceHeader>
-            <ResourceName>Plasma Density</ResourceName>
-            <ReleaseDate>2018-12-03T00:00:00.000</ReleaseDate>
-            <Description/>
-            <Contact>
-                <PersonID>Benjamin Torn</PersonID>
-                <Role>DataProducer</Role>
-            </Contact>
-        </ResourceHeader>
-        <AccessInformation>
-            <RepositoryID>spase://IMPEX/Repository/IRAP</RepositoryID>
-            <AccessURL>
-                <URL>http://www.irap.omp.eu</URL>
-            </AccessURL>
-            <Format>NetCDF</Format>
-        </AccessInformation>
-        <MeasurementType>ThermalPlasma</MeasurementType>
-        <SpatialDescription>
-            <Dimension>3</Dimension>
-            <CoordinateSystem>
-                <CoordinateRepresentation>Cartesian</CoordinateRepresentation>
-                <CoordinateSystemName>JSO</CoordinateSystemName>
-            </CoordinateSystem>
-            <Units>km</Units>
-            <UnitsConversion> 1000 > m </UnitsConversion>
-            <RegionBegin> -2144760. -2144760. -2144760. </RegionBegin>
-            <RegionEnd> 2144760. 2144760. 2144760. </RegionEnd>
-        </SpatialDescription>
-        <SimulatedRegion>Jupiter</SimulatedRegion>
-        <InputResourceID>spase://IMPEX/SimulationRun/IRAP/CPEMv2/test1</InputResourceID>
-        <Parameter>
-            <Name>Plasma Density</Name>
-            <ParameterKey>Flux</ParameterKey>
-            <Units>cm^-3</Units>
-            <Particle>
-                <PopulationID>Thermal Electrons</PopulationID>
-                <ParticleType>Electron</ParticleType>
-                <ParticleQuantity>NumberDensity</ParticleQuantity>
-                <PopulationMassNumber>0</PopulationMassNumber>
-                <PopulationChargeState>-1</PopulationChargeState>
-            </Particle>
-        </Parameter>
-        <SimulationProduct>3DCubes</SimulationProduct>
-    </NumericalOutput>
-    <Granule>
-        <ResourceID>
-            spase://IMPEX/Granule/IRAP/CPEMv2/test1/plasma_density/file
-        </ResourceID>
-        <ReleaseDate>2018-12-03T00:00:00.000</ReleaseDate>
-        <ParentID>
-            spase://IMPEX/NumericalOutput/IRAP/CPEMv2/test1/plasma_density
-        </ParentID>
-        <RegionBegin> -2144760. -2144760. -2144760. </RegionBegin>
-        <RegionEnd> 2144760. 2144760. 2144760. </RegionEnd>
-        <Source>
-            <SourceType>Data</SourceType>
-            <URL>
-                http://userpages.irap.omp.eu/~vgenot/3DView/densityfromQN.nc
-            </URL>
-            <!--  a remplacer  -->
-        </Source>
-    </Granule>
-</Spase>
diff --git a/public/tree/tree_onera_QN3.xml b/public/tree/tree_onera_QN3.xml
deleted file mode 100644
index 05aa3fd..0000000
--- a/public/tree/tree_onera_QN3.xml
+++ /dev/null
@@ -1,182 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Spase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://impex-fp7.oeaw.ac.at" xsi:schemaLocation="http://impex-fp7.oeaw.ac.at/xsd/impex-1_0_1.xsd">
-<Version>2.2.2</Version>
-<SimulationModel>
-     <ResourceID>spase://IMPEX/SimulationModel/ONERA/Salammbo</ResourceID>
-     <ResourceHeader>
-     <ResourceName>ONERA_Salammbo</ResourceName>
-            <ReleaseDate>2017-10-18T00:00:00.000</ReleaseDate>
-            <Description>
-                Salammbo model of the Jovian electron radiation belts developed by ONERA
-            </Description>            
-            <Contact>
-                <PersonID>ONERA</PersonID>
-                <Role>DataProducer</Role>
-            </Contact>
-            <InformationURL>
-                <URL>http://www.onera.fr</URL> <!-- a remplacer -->
-            </InformationURL>
-        </ResourceHeader>
-        <SimulationType>Analytic</SimulationType>
-        <CodeLanguage>Fortran1990</CodeLanguage>
-    </SimulationModel>  
-<Repository> 
-<ResourceID>spase://IMPEX/Repository/ONERA</ResourceID> 
-<ResourceHeader> 
-<ResourceName>ONERA simulation</ResourceName> 
-<ReleaseDate>2017-10-18T00:00:00.000</ReleaseDate> 
-<Description/>
-<Contact> 
-<PersonID>ONERA</PersonID> 
-<Role>DataProducer</Role> 
-</Contact> 
-</ResourceHeader> 
-<AccessURL> 
-<URL>http://www.ONERA.fr</URL> 
-</AccessURL> 
-</Repository> 
-<SimulationRun>
-<ResourceID>spase://IMPEX/SimulationRun/ONERA/Salammbo/test1</ResourceID>
-<ResourceHeader>
-<ResourceName>Salammbo_test1</ResourceName>
-<ReleaseDate>2017-10-18T00:00:00.000</ReleaseDate>
-<Description/>
-<Contact>
-<PersonID>ONERA</PersonID>
-<Role>DataProducer</Role>
-</Contact>
-</ResourceHeader>
-<Model>
-    <ModelID>spase://IMPEX/SimulationModel/ONERA/Salammbo</ModelID>
-</Model>
-<TemporalDependence>No</TemporalDependence>
-<SimulatedRegion>Jupiter</SimulatedRegion>
-<LikelihoodRating>Probable</LikelihoodRating>
-    <SimulationTime>
-        <Duration>PT2072.854S</Duration>
-        <TimeStart>00:00:00</TimeStart>
-        <TimeStep>PT0.115S</TimeStep>
-    </SimulationTime>
-<SimulationDomain>
-<CoordinateSystem>
-<CoordinateRepresentation>Cartesian</CoordinateRepresentation>
-<CoordinateSystemName>SYSTEM_3</CoordinateSystemName>
-</CoordinateSystem>
-<SpatialDimension>3</SpatialDimension>
-<VelocityDimension>0</VelocityDimension>
-<FieldDimension>3</FieldDimension>
-<Units>km</Units>
-<CoordinatesLabel>X Y Z</CoordinatesLabel>
-<ValidMin>-750566.  -750566.  -750566.</ValidMin>
-<ValidMax>750566.   750566.   750566.</ValidMax>
-<GridStructure>Constant</GridStructure>
-<GridCellSize>35746.    35746.    35746.</GridCellSize>
-<Symmetry>Axial</Symmetry>
-<BoundaryConditions>
-<ParticleBoundary>
-<SideWall> absorbing </SideWall>
-<Obstacle> absorbing </Obstacle>
-</ParticleBoundary>
-
-</BoundaryConditions>
-</SimulationDomain>
-
-<RegionParameter>
-<SimulatedRegion>Jupiter</SimulatedRegion>
-<Radius Units="km">71492.00</Radius>
-</RegionParameter>
-<InputField>
-<Name>InternalMagneticField</Name>
-<SimulatedRegion>Jupiter</SimulatedRegion>
-<FieldQuantity>Magnetic</FieldQuantity>
-<FieldModel>O6</FieldModel>
-</InputField>
-<InputField>
-<Name>ExternalMagneticField</Name>
-<SimulatedRegion>Jupiter</SimulatedRegion>
-<FieldQuantity>Magnetic</FieldQuantity>
-<FieldModel>Khurana1997</FieldModel>
-</InputField>
-<InputPopulation>
-<Name>radiation belt electrons</Name>
-<Description>10MeV electron</Description>
-<SimulatedRegion>Jupiter</SimulatedRegion>
-<ParticleType>Electron</ParticleType>
-<PopulationMassNumber>0</PopulationMassNumber>
-<PopulationChargeState>-1</PopulationChargeState>
-</InputPopulation>
-
-
-<InputProcess>
-<Name>Radial diffusion</Name>
-<ProcessType>Other</ProcessType>
-<Units>s-1</Units>
-<ProcessCoefficient>10E-10</ProcessCoefficient>
-<ProcessCoeffType>Rate</ProcessCoeffType>
-</InputProcess>
-
-
-</SimulationRun>
-
-
-<NumericalOutput>
-<ResourceID>spase://IMPEX/NumericalOutput/ONERA/Salammbo/test1/flu10MeV</ResourceID>
-<ResourceHeader>
-<ResourceName>10MeV Electron flux</ResourceName>
-<ReleaseDate>2017-10-18T00:00:00.000</ReleaseDate>
-<Description/>
-<Contact>
-<PersonID>ONERA</PersonID>
-<Role>DataProducer</Role>
-</Contact>
-</ResourceHeader>
-<AccessInformation>
-<RepositoryID>spase://IMPEX/Repository/ONERA</RepositoryID>
-<AccessURL>
-<URL>http://www.onera.fr</URL>
-</AccessURL>
-<Format>NetCDF</Format>
-</AccessInformation>
-<MeasurementType>EnergeticParticles</MeasurementType>
-<SpatialDescription>
-<Dimension>3</Dimension>
-<CoordinateSystem>
-<CoordinateRepresentation>Cartesian</CoordinateRepresentation>
-<CoordinateSystemName>SYSTEM_3</CoordinateSystemName>
-</CoordinateSystem>
-<Units>km</Units>
-<UnitsConversion> 1000 &gt; m </UnitsConversion>
-<RegionBegin>   -750566.   -750566.   -750566. </RegionBegin>
-<RegionEnd>    750566.    750566.    750566. </RegionEnd>
-</SpatialDescription>
-<SimulatedRegion>Jupiter</SimulatedRegion>
-<InputResourceID>spase://IMPEX/SimulationRun/ONERA/Salammbo/test1</InputResourceID>
-<Parameter>
-<Name>Flux</Name>
-<ParameterKey>Flux</ParameterKey>
-<Units>cm^-2.s^-1</Units>
-<Particle>
-<PopulationID>Radiation belt electrons</PopulationID>
-<ParticleType>electron</ParticleType>
-<ParticleQuantity>NumberFlux</ParticleQuantity>
-<PopulationMassNumber>0</PopulationMassNumber>
-<PopulationChargeState>-1</PopulationChargeState>
-</Particle>
-</Parameter>
-
-<SimulationProduct>3DCubes</SimulationProduct>
-</NumericalOutput>
-
-<Granule>
-<ResourceID>spase://IMPEX/Granule/ONERA/Salammbo/test1/flux10MeV/file</ResourceID>
-<ReleaseDate>2017-10-18T00:00:00.000</ReleaseDate>
-<ParentID>spase://IMPEX/NumericalOutput/ONERA/Salammbo/test1/flu10MeV</ParentID>
-<RegionBegin>   -750566.   -750566.   -750566. </RegionBegin>
-<RegionEnd>    750566.    750566.    750566. </RegionEnd>
-<Source>
-<SourceType>Data</SourceType>
-<URL>http://userpages.irap.omp.eu/~vgenot/3DView/salammbo10MeV.nc</URL> <!-- a remplacer -->
-</Source>
-</Granule>
-
-</Spase>
--
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