Table information for 'spicam.epn_core'

General

Table Description: 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).

This table is available for ADQL queries and through the TAP endpoint.

Resource Description: 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, Article link. User Manual of the service

For a list of all services and tables belonging to this table's resource, see Information on resource 'SPICAM'

Resource Reference URL: http://europlaneth2020.projet.latmos.ipsl.fr/

Citing this table

@MISC{vo:spicam_epn_core,
  year=2018,
  title={{SPICAM}},
  author={Azria Chloé; Rostaing Alexandre; Zi Yin},
  url={http://vo.projet.latmos.ipsl.fr/tableinfo/spicam.epn_core},
  howpublished={{VO} resource provided by the {LATMOS} {DaCHS} server}
}

Columns

Sorted alphabetically. [Sort by DB column index]

Columns that are parts of indices are marked like this.

VOResource

VO nerds may sometimes need VOResource XML for this table.

Notes

• Note et_prod

  The following values are defined for this field:

  im -- image

  associated scalar fields with two spatial axes, e.g., images with multiple color planes like from multichannel or filter cameras. Preview images (e.g. map with axis and caption) also belong here. Conversely, all vectorial 2D fields are described as catalogue (see below).

  ma -- map

  scalar field/rasters with two spatial axes covering a large area and projected either on the sky or on a planetary body, associated to a Projection parameter (with a short enumerated list of possible values). This is mostly intended to identify complete coverages that can be used as reference basemaps.

  sp-- spectrum

  measurements organized primarily along a spectral axis, e.g., radiance spectra. This includes spectral aggregates (series of related spectra with non-connected spectral ranges, e.g., from several channels of the same instrument

  ds -- dynamic spectrum

  consecutive spectral measurements through time, organized as a time series. This typically implies successive spectra of the same target or field of view.

  sc -- spectral cube

  sets of spectral measurements with 1 or 2 D spatial coverage, e.g., imaging spectroscopy. The choice between Image and spectral_cube is related to the characteristics of the instrument (which dimension is most resolved and which dimensions are acquired simultaneously). The choice between dynamic_spectrum and spectral_cube is related to the uniformity of the field of view.

  pr -- profile

  scalar or vectorial measurements along 1 spatial dimension, e.g., atmospheric profiles, atmospheric paths, sub-surface profiles, traverses…

  pf -- photometric profile

  scalar or vectorial measurements along 1 angular dimension, e.g., phase or polarization curves, phase functions, emission-phase function sequences… typically associated to variations in illumination angle parameters.

  vo -- volume

  other measurements with 3 spatial dimensions, e.g., internal or atmospheric structures, including shells/shape models (3D surfaces).

  mo -- movie

  sets of chronological 2 D spatial measurements.

  cu -- cube

  multidimensional data with 3 or more axes, e.g., all that is not described by other 3 D data types such as spectral cubes or volume. This is mostly intended to accommodate unusual data with multiple dimensions.

  ts -- time series

  measurements organized primarily as a function of time (with exception of dynamical spectra and movies, i.e. usually a scalar quantity). Typical examples of time series include space-borne dust detector measurements, daily or seasonal curves measured at a given location (e.g., a lander), and light curves.

  ca -- catalog

  applies to a single granule providing a list of events, a catalog of object parameters, a list of features… It is good practice to describe the type of data included in the catalogue using a hash-separated-list (e.g., a table of spectra should be described by ca#sp, so that it will respond to a query for spectra).

  ci -- catalogue item

  applies when the service itself provides a catalogue, with entries described as individual granules. The service can be, e.g., a list of asteroid properties or spectral lines. Catalogue_item can be limited to scalar quantities (including strings), and possibly to a single element. This organization allows the user to search inside the catalogue from the TAP query interface.

  sv -- spatial vector

  vector information associated to localization, such as spatial footprints or a GIS-related element. This could contain a kml or geojson file (STC-S strings are provided though the s_region parameter, though). This includes maps of vectors, e.g., wind maps.

  ev -- event

  individual events, typically formatted in VOEvent. Characteristics are provided via the event_* parameters.

• Note et_cal

  CODMAC levels are:

  1 -- raw

  2 -- edited

  3 -- calibrated

  4 -- resampled

  5 -- derived

  6 -- ancillary

• Note orbit

  Mars Express orbits and observations are given numbers indicating the orbit number and the observation session along that orbit, with format "orbitAsession".

• Note mcd_link

  In this service, links to different Mars Climate Scenario (MCS) for the coordinates corresponding to the orbit measurements arebib available. These links enable data comparisions between the SPICAM derived profiles and the MCD (Mars Climate Database) generated profiles of other scenarios. The MCD profiles are generated according to the SPICAM profile's Solar longitude, martian local time, latitude and longitude on Mars, the MCS.

  The available scenarion are as follow:

  • my - Martian Year scenario is the dust scenario corresponding to the Martian year.
  • clim - Climato dust scenario with average solar EUV.
  • cold - Cold dust scenario with minimum solar EUV.
  • warm - Warm dust scenario with maximum solar EUV.
  • storm - Dust storm dust scenario, only available during Martian summers (Solar longitude 180 to 360)

Copyright and such: LATMOS/IPSL