spicam.epn_coreivo://latmos.ipsl/spicam/q/epn_coreLaboratoire Atmosphères, Milieux, Observations SpatialesAzria Chloé; Rostaing Alexandre; Zi YinAnni Määttänen ; Francois Forget ; Sebastien Lebonnois2022-05-02T14:08:31ZAnni Määttänen

LATMOS, Tour 45, couloir 45-46, 3rd and 4th floors, Boite 102 / 4 Place Jussieu, 75005 Paris, FRANCE

anni.maattanen@latmos.ipsl.fr+33 (0) 1 44 27 49 70marssolar-system-astronomyplanetary-scienceplanetary-atmospheresatmospheric-compositionplanetary-climatesstellar-occultationatmospheric-variabilitycarbon-dioxide The database contains profiles of atmospheric CO2 density and temperature derived thereof, and ozone concentration profiles, all derived from the first year(s) of SPICAM UV stellar occultation observations (Forget et al. 2009, Lebonnois et al. 2006). The database also includes the full dataset of four Martian years of aerosol extinction profiles from SPICAM UV solar occultations (Määttänen et al. 2013).#Määttänen et al. (2013), A complete climatology of the aerosol vertical distribution on Mars from MEx/SPICAM UV solar occultations, Icarus, 223, doi:10.1016/j.icarus.2012.12.001 #Lebonnois et al. (2006), Vertical distribution of ozone on Mars as measured by SPICAM/Mars Express using stellar occultations, J. Geophys. Res., 111, E09S05, doi:10.1029/2005JE002643 #Forget et al. (2009), Density and temperatures of the upper Martian atmosphere measured by stellar occultations with Mars Express SPICAM, J. Geophys. Res., 114, E01004, doi:10.1029/2008JE003086http://vo.projet.latmos.ipsl.fr/tableinfo/spicam.epn_coreGeneralUniversityResearchIsServedByLATMOS DaCHS server TAP servicehttp://vo.projet.latmos.ipsl.fr/tapEuropean Mars ExpressSPICAMInfraredUVspicam INSTRUMENT DESCRIPTION: The following description of SPICAM has been adapted from: Bertaux et al. (2006), SPICAM on Mars Express: Observing modes and overview of UV spectrometer data and scientific results, J. Geophys. Res., 111, E10S90, doi:10.1029/2006JE002690. Korablev et al. (2006), SPICAM IR acousto-optic spectrometer experiment on Mars Express, J. Geophys. Res., 111, E09S03, doi:10.1029/2006JE002696. SPICAM was the first instrument to perform stellar occultations at Mars, and its UV imaging spectrometer (118–320 nm, resolution 1.5 nm) was designed primarily to obtain atmospheric vertical profiles by stellar occultation. The wavelength range was dictated by the strong UV absorption of CO2 (wavelength under 200 nm) and the strong Hartley ozone absorption (220–280 nm). The capacity to orient the spacecraft allows a great versatility of observation modes: nadir and limb viewing (both day and night) and solar and stellar occultations. The SPICAM IR spectrometer on Mars Express mission (1.0–1.7 μm, spectral resolution 0.5–1.2 nm) is one of two channels of SPICAM UV‐IR instrument. In this spectrometer is applied for the first time in planetary research the technology of an acousto‐optic tunable filter (AOTF). SPICAM IR is a point nadir‐looking spectrometer with sequential scanning of the spectrum by the AOTF. Sun occultations are performed with a help of dedicated solar port. A recent review of the 10 years of observations by SPICAM was published by Montmessin et al. (2017), SPICAM on Mars Express: A 10 year in-depth survey of the Martian atmosphere, Icarus 297, pp. 195-216, <a href=https://doi.org/10.1016/j.icarus.2017.06.022>Article link</a>. <a href=http://vo.projet.latmos.ipsl.fr:8080/vo/SPICAM_VESPA_service_user_manual.pdf> User Manual of the service </a>spicam.epn_core The database contains profiles of atmospheric CO2 density and temperature derived thereof, and ozone concentration profiles, all derived from the first year(s) of SPICAM UV stellar occultation observations (Forget et al. 2009, Lebonnois et al. 2006). The database also includes the full dataset of four Martian years of aerosol extinction profiles from SPICAM UV solar occultations (Määttänen et al. 2013).ivo://ivoa.net/std/epntap#table-2.0granule_uidInternal table row index, which must be unique within the table. Can be alphanumeric.meta.idcharindexedprimarygranule_gidCommon to granules of same type (e.g. same map projection, or geometry data products). Can be alphanumeric.meta.idcharobs_idAssociates granules derived from the same data (e.g. various representations/processing levels). Can be alphanumeric, may be the ID of original observation.meta.id;obschardataproduct_typeThe high-level organization of the data product, from a controlled vocabulary (e.g., 'im' for image, sp for spectrum). Multiple terms may be used, separated by # characters.meta.code.classcharnullabletarget_nameStandard IAU name of target (from a list related to target class), case sensitivemeta.id;srccharnullabletarget_classType of target, from a controlled vocabulary.src.classcharnullabletime_minAcquisition start time (in JD), as UTC at time_refpositiondtime.start;obsdoublenullabletime_maxAcquisition stop time (in JD), as UTC at time_refpositiondtime.end;obsdoublenullabletime_sampling_step_minSampling time for measurements of dynamical phenomena, lower limit.stime.resolution;stat.mindoublenullabletime_sampling_step_maxSampling time for measurements of dynamical phenomena, upper limitstime.resolution;stat.maxdoublenullabletime_exp_minIntegration time of the measurement, lower limit.stime.duration;obs.exposure;stat.mindoublenullabletime_exp_maxIntegration time of the measurement, upper limitstime.duration;obs.exposure;stat.maxdoublenullablespectral_range_minSpectral range (frequency), lower limit.Hzem.freq;stat.mindoublenullablespectral_range_maxSpectral range (frequency), upper limitHzem.freq;stat.maxdoublenullablespectral_sampling_step_minSpectral sampling step, lower limit.Hzem.freq;spect.binSize;stat.mindoublenullablespectral_sampling_step_maxSpectral sampling step, upper limitHzem.freq;spect.binSize;stat.maxdoublenullablespectral_resolution_minSpectral resolution, lower limit.spect.resolution;stat.mindoublenullablespectral_resolution_maxSpectral resolution, upper limitspect.resolution;stat.maxdoublenullablec1minLongitude on body, lower limit.degpos.bodyrc.lon;stat.mindoublenullablec1maxLongitude on body, upper limitdegpos.bodyrc.lon;stat.maxdoublenullablec2minLatitude on body, lower limit.degpos.bodyrc.lat;stat.mindoublenullablec2maxLatitude on body, upper limitdegpos.bodyrc.lat;stat.maxdoublenullablec3minAltitude from reference surface, lower limit.kmpos.bodyrc.alt;stat.mindoublenullablec3maxAltitude from reference surface, upper limitkmpos.bodyrc.alt;stat.maxdoublenullables_regionObsCore-like footprint, valid for celestial, spherical, or body-fixed framespos.outline;obs.fieldcharnullablec1_resol_minResolution in the first coordinate, lower limit.degpos.angResolution;stat.mindoublenullablec1_resol_maxResolution in the first coordinate, upper limitdegpos.angResolution;stat.maxdoublenullablec2_resol_minResolution in the second coordinate, lower limit.degpos.angResolution;stat.mindoublenullablec2_resol_maxResolution in the second coordinate, upper limitdegpos.angResolution;stat.maxdoublenullablec3_resol_minResolution in the third coordinate, lower limit.kmpos.resolution;stat.mindoublenullablec3_resol_maxResolution in the third coordinate, upper limitkmpos.resolution;stat.maxdoublenullablespatial_frame_typeFlavor of coordinate system, defines the nature of coordinates. From a controlled vocabulary, where 'none' means undefined.meta.code.class;pos.framecharnullableincidence_minIncidence angle (solar zenithal angle) during data acquisition, lower limit.degpos.incidenceAng;stat.mindoublenullableincidence_maxIncidence angle (solar zenithal angle) during data acquisition, upper limitdegpos.incidenceAng;stat.maxdoublenullableemergence_minEmergence angle during data acquisition, lower limit.degpos.emergenceAng;stat.mindoublenullableemergence_maxEmergence angle during data acquisition, upper limitdegpos.emergenceAng;stat.maxdoublenullablephase_minPhase angle during data acquisition, lower limit.degpos.phaseAng;stat.mindoublenullablephase_maxPhase angle during data acquisition, upper limitdegpos.phaseAng;stat.maxdoublenullableinstrument_host_nameStandard name of the observatory or spacecraftmeta.id;instr.obstycharnullableinstrument_nameStandard name of instrumentmeta.id;instrcharnullablemeasurement_typeUCD(s) defining the data, with multiple entries separated by hash (#) characters.meta.ucdcharnullableprocessing_levelDataset-related encoding, or simplified CODMAC calibration levelmeta.calibLevelintcreation_dateDate of first entry of this granuletime.creationcharnullablemodification_dateDate of last modification (used to handle mirroring)time.processingcharnullablerelease_dateStart of public access periodtime.releasecharnullableservice_titleTitle of resource (an acronym really, will be used to handle multiservice results)meta.titlecharnullableaccess_urlURL of the data file, case sensitive. If present, then access_format and access_estsize are mandatory.meta.ref.url;meta.filecharnullableaccess_formatFile format type (RFC 6838 Media Type a.k.a. MIME type)meta.code.mimecharnullableaccess_estsizeEstimated file size in kbyte.kbytephys.size;meta.fileintnullablebib_referenceBibcode or DOI preferred if available, or other bibliographic identifier or URLmeta.bibcharnullabletime_scaleDefaults to UTC in data services; takes values from http://www.ivoa.net/rdf/time_scale otherwisetime.scalecharnullablespatial_coordinate_descriptionID of specific coordinate system and version or properties.meta.code.class;pos.framecharnullablespeciesIdentifies a chemical species, case sensitivemeta.id;phys.atmolcharnullabletarget_regionType of region or feature of interestmeta.id;src;obs.fieldcharnullablesolar_longitude_minMin Solar longitude Ls (location on orbit / season)degpos.ecliptic.lon;pos.heliocentric;stat.mindoublenullablesolar_longitude_maxMax Solar longitude Ls (location on orbit / season)degpos.ecliptic.lon;pos.heliocentric;stat.maxdoublenullablelocal_time_minMin local time at observed regionhtime.phase;time.period.rotation;stat.mindoublenullablelocal_time_maxMax local time at observed regionhtime.phase;time.period.rotation;stat.maxdoublenullablemars_yearMartian Year of the observationtime.epoch;time.period.revolutionintndataNumber of points provided in the recorded profilemetaintdatalink_urlURL of a datalink service for this datasetmeta.ref.urlcharnullable