1. GhoSST (formerly STSP)
Laboratoire de Planétologie de Grenoble (LPG) (will merge as « Institut de Planétologie et d’Astrophysique de Grenoble » – IPAG - in 2011)
GhoSST (formerly STSP)
“Grenoble Astrophysics and Planetology Solid Spectroscopy and Thermodynamics"
database service
GhoSST structure is under development (Europlanet RI + VAMDC)
Involvement in VAMDC:
Aims : 1) develop molecular physics data model for solids
2) build the molecular solids physical properties databases
- Organization of a group of European data publishers and users (with Europlanet RI)
Discuss the solid datamodel: spectroscopy (2010) and physical properties (2011)
 1st work meetings (13 january 2010) with data producers
Solid spectroscopy datamodel
- expand the datamodel to other types of spectroscopic data and solids ( )
- implement on the GhoSST database (2010)
- implement some tools on the GhoSST database (2010)
- validate and add sets of spectroscopy data to GhoSST database ( )

2. JRA-4 : Transforming IDIS into a Planetary Virtual Observatory
To be done in FP7 ...
JRA-4 : Transforming IDIS into a Planetary Virtual Observatory
Task “New databases”
Laboratory spectroscopic databases for solids :
- Develop a generic database infrastructure for spectroscopic data of solids.
- Feed new databases covering :
- UV-to-FIR transmission spectroscopy of ices and organics (extend),
- UV-to-NIR bidirectional reflection spectroscopy of solid surfaces (planetary analogue materials: ices and hydrated minerals)
- NIR-MIR Emission spectroscopy of minerals (IPR/DLR-Berlin)
- Integration to IDIS : production of interfaces for interoperability

3. Analysis of surfaces and aerosols spectra of solar system objects
identifications : band position, width and intensity (lab spectra, band list)
Composition and physical state :
- aerosols or icy surfaces : radiative transfert models (optical constants)
- planetary surface : comparison, decomposition (lab reflection spectra)
Triton
Pluto

4. GhoSST : Main Functions
 in development
Database administration interface
Search engine
Tools :
interactive visualisation, comparisons
Spectral convolution, unit conversions
Data format converter, ...
Data delivery system (files, figures, references)
User profile
The first data model has been implemented in a prototype web service at LPG, named GhoSST, to test the data model and the development tools.
It consist mainly in:
- a database administration interface to feed the database with laboratory data.
- a search engive with different levels of search that allows to select the relevant data present in the database
- some tools, currently only a spectra vizualisation tool, that allow to visalize, compare and apply different convertions to the data.
- a data delivering system to download the data and their associated information, including figures and relevant references.
The development of an operational interface including these tools will be the core of the work at LPG for 2010.
It will be fed with transmission spectra of ices and with bidirectional spectra of grenular surfaces made of various materials
Then this database infrastructure will be transformed into a generic but adaptable infrastructure in order to fit similar needs of other experimental groups working in solid spectroscopy.
It will be first tested with the Berlin emission spectroscopy database at DLR.

5. Solid Spectroscopy Data Model
(SSDM)
B.Schmitt
Laboratoire de Planétologie de Grenoble
CNRS / UJF
What are the important parameters in order to describe Solid Spectroscopy ?
F-VAMDC 12 Dec 2008

6. GhoSST : Prototype Data model
(transmission spectroscopy of molecular ices)
- instrument
- sample
- spectra
- band list
- references
I will describe the current state and the next development steps of a generic database infrastructure for spectroscopic data of solids, starting from the current state of the GhoSST service.
A first data model has been developped at LPG to describe the laboratory experiments, the samples and the measured spectra in the case of transmission spectroscopy and for molecular ices.
A data model for « Band list » has been also developed. It allows to describe the absorption properties of individual bands of solids and will be useful for quick search of molecules absorbing in a given wavelength range.
The current step in the frame of Europlanet is to expand this data model to the other types of laboratory solid spectroscopy with planetary remote sensing or in-situ interests, such as reflectance or emission spectroscopy.
We need also to define specific datamodels for other types of solids of planetary interest, such as minerals and rocks, or organic matter.
This will be done in the coming months in close connection with the laboratories that may be interested to provide such type of laboratory data to the planetary community, and also with some selected users of solid material spectra.
Note : GhoSST = “Grenoble astropHysics and planetOlogy Solid Spectroscopy and Thermodynamics" database service
 select the relevant spectroscopic and solid parameters for astrophysicists / planetologists
 To be extended (other solids, other spectroscopies)

7. Instrument parameters
Measurement technics
Spectral / Angular / Spatial
range
resolution
sampling

8. Instrument parameters
Sample - Layers - Materials - Constituents : Molecules or minerals
Instrument parameters

9. Products : Spectra (levels 1 to 4)
- Absorbance spectra (level. 2) Optical constants (level. 4)

10. Instrument parameters
Spectra - Transmission spectra - Normalized absorbance - Absorption coefficients - Optical constants

11. Band list

12. Products : Band Lists (level 5) (positions, intensities, modes, …)
Bands of CH4 ice

13. Band list DM 1) Solid (molecular case)
Molecule (or isotope)
2nd molecule
1st molecule Proportion
Solid familly (molecular, mineral, …)
Compound type (pure, molec. mixt., clathrate, …)
Phase type (cristalline, amorphous solid, liquid, …)
Phase (Ic, Ih, IV, …)
Sample temperature
Annealing temperature and time
Gas pressure and composition

14. Band list DM 2) Spectroscopy
Frequency [+ uncertainty]
Width (FWHM) [+ uncertainty]
Peak Intensity (abs. coeff., or k) [+ uncertainty]
Integrated intensity (abs. coeff., or k) [+ uncertainty]
Band strength (vvs to vvw)
transition mode (ex: [(2,1),(1,2),(3,3)])
mode type (ex: O-H stretching)
Reference list (1st measurement/attribution)
+ analyzed frequency range ?

15. Development of band list sub-database and tools
tables of :
positions,
width,
Intensities (peak, integrated)
vibration modes (+ type)
references
 Data Model
~ 500 bandes sur 6 molécules
(N2, CO, CO2, CH4, C2H6, SO2)
Data feeding interface,
Search engine
Visualisation, delivery

16. Data model extensions to describe : - additional types of materials
additionnal instrument techniques
attributes to describe
Bidirectional / Biconic reflectance spectroscopy
Emission spectroscopy
IR + Raman + fluorescence micro-spectroscopies
new sample types ?
new spectra types or spectral products
- additional types of materials
Minerals / Rocks
Which classification to use ?
Which attributes to completely characterize one mineral ?
Complex organics
How to characterize a complex synthetic or natural organic solid ?

17. Data model extensions Data model format evolution
- Conversion in PDS standards and format ? (PDS4 ?)
- compatibility ?
Organization of data model evolution
- Organization of a group of European data publishers and users
(VAMDC and Europlanet RI)
- Development of the solid data model:
- Spectroscopy (2010)
- Physical properties (2011) (+ ASOV + PCMI)
 1st work meeting (13 january 2010) in Grenoble (LPG)
with european data producers (~10)