Date (Creation)

1996-01-01

Identifier

CEBA_ALS_BRGM_xxXXXX1996

Credit

SOCIÉTÉ ALTOA

Status

Completed

Maintenance and update frequency

Unknown

GEMET - INSPIRE themes, version 1.0 INSPIRE themes

• Elevation

Geounits

• Americas
• South America
• France
• French Guiana

GEMET - Concepts, version 2.4

• laser
• remote sensing
• vegetation cover

Keywords

• local coverage
• labex CEBA

Theme

• aerial laser scanning (ALS)

Place

• Cayenne

Use limitation

Please get in touch with a point of contact.

Access constraints

Other restrictions

Other constraints

Unknown

Classification

Unclassified

Spatial representation type

Vector

Distance

0.35  m

Metadata language

eng

Character set

UTF8

Topic category

• Elevation

Begin date

1996-01-01

End date

1996-12-31

Supplemental Information

Bibliography : Bourgine B., Baghdadi N., Hosford S., and Daniels P., 2004. Generation of a ground-level DEM in a dense equatorial forest zone by merging airborne laser data and a top-of-canopy DEM. Canadian Journal of Remote Sensing, vol. 30, no. 6, pp. 913-926

Reference system identifier

EPSG / CSG67 / UTM zone 22N (EPSG:2971) / 7.9

Distribution format

• unknown ( 1 )

OnLine resource

Bourgine B., Baghdadi N., Hosford S., and Daniels P., 2004. Generation of a ground-level DEM in a dense equatorial forest zone by merging airborne laser data and a top-of-canopy DEM. Canadian Journal of Remote Sensing, vol. 30, no. 6, pp. 913-926 ( WWW:LINK-1.0-http--related )

Hierarchy level

Dataset

Statement

Flight lines were oriented N30° with a 500-m spacing, complemented by transverse flight lines oriented N120° with a 5-km spacing. Laser sampling density was approximately 7 m along flight lines (sampling frequency = 10 Hz). Laser wavelength is 905 nm and footprint size is 35 cm. The laser measurements are therefore considered as point data. The available laser data correspond to the first pulse returned, i.e. the first obstacle encountered. As these laser data were acquired for the purpose of checking the quality of the geophysical survey, particularly the flight ground clearance, a low sampling frequency was chosen and only the first pulse considered. The quality of the airborne data was assessed by examining the errors at flight-line intersections (lines N030° and N120°). Assuming that the errors related to linear interpolation carried out in the vicinity of flight-line intersections are insignificant for flat terrain (elevation <10 m), then elevation accuracy for the filtered data is estimated at around +-2 m.

File identifier

b5219540-0170-4caf-8a0f-69c1cc6a0e7c XML

Metadata language

eng

Character set

UTF8

Hierarchy level

Dataset

Date stamp

2017-05-04T15:02:42

Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0