OSINT Geospatial Intelligence & Mapping 2

Question 1

Which file format stores both vector geometry and attribute data in a single compressed file and is commonly used in GIS web applications?

Accepted Answer

GeoPackage

Answer

GeoPackage (GPKG) is an open, standards-based format that stores vector, raster, and attribute data in a single SQLite database file.

Question 2

An OSINT analyst notices a building's shadow in a satellite image and wants to estimate the building's height. Which additional data is required?

Accepted Answer

The sun's elevation angle at the time of capture

Answer

Shadow length combined with the sun's elevation angle (and azimuth) allows calculation of an object's height using basic trigonometry.

Question 3

What does the term 'spatial resolution' refer to in satellite imagery?

Accepted Answer

The smallest ground feature that can be distinguished in an image

Answer

Spatial resolution describes the smallest discernible ground feature, typically expressed in meters per pixel (e.g., 30cm resolution means each pixel represents 30cm of ground).

Question 4

Which coordinate reference system uses a series of numbered zones, each 6 degrees wide in longitude, and is widely used by the US military?

Accepted Answer

UTM (Universal Transverse Mercator)

Answer

UTM divides the Earth into 60 zones of 6° longitude each and provides metric coordinates, making distance calculations straightforward.

Question 5

An analyst uses Sentinel Hub to access multispectral satellite imagery. Which index is most useful for detecting active fires and burn scars?

Accepted Answer

NBR (Normalized Burn Ratio)

Answer

NBR uses near-infrared and shortwave infrared bands to highlight recently burned areas and assess fire severity.

(OSINT) Open Source Intelligence Certification Practice Test

(OSINT) Open Source Intelligence Certification Practice Test

OSINT Geospatial Intelligence & Mapping 2