Geospatial
Choosing an Equal-Area Projection for Area Reporting
Select an area-measurement method suited to the project's extent, distinguish projected and ellipsoidal calculations, and keep geometry and units consistent.
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NIVO JOURNAL
Insights for every mission.
Practical guides to VTOL aircraft, drone technology, geospatial workflows, payloads and inspection.
Geospatial
Preparing Portable GeoPackage Deliverables With Reliable Field Types
Package related vector layers with clear schemas, identifiers, coordinate references, and transfer checks so a single GIS file remains useful beyond its creator's workstation.
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Geospatial
Checking CRS Axis Order During Coordinate Import
Verify column meanings, axis conventions, units, and transformations before importing coordinates so plausible numbers do not become points in the wrong location.
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Geospatial
Zonal Statistics With Masks and Boundary Pixels
Choose cell-inclusion and weighting rules that match raster meaning, report valid coverage, and test small zones before summarising drone measurements by management area.
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Geospatial
Stratified Sampling for Rare Land-Cover Classes
Design an independent probability sample that represents rare classes, preserves inclusion probabilities, and supports defensible accuracy and area estimates.
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Geospatial
Aligning Raster Grid Origins Before Pixelwise Analysis
Check grid origin, cell size, rotation, extent, and validity before combining rasters so identical resolutions do not conceal shifted pixel footprints.
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Geospatial
Co-Registering Repeat Surveys With Stable Features
Estimate relative alignment from genuinely unchanged observations, keep independent checks, and avoid fitting away the physical changes the project needs to measure.
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Payloads
RAW or JPEG for Aerial Mapping: Decide from the Delivery Chain
Choose an aerial image format by testing conversion, geometry, metadata, storage, and recipient needs before committing an entire survey to one workflow.
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Payloads
Testing Camera Cards and Buffers for Sustained Aerial Capture
Test sustained capture with the actual camera, card, format, and trigger interval, then distinguish storage capacity from reliable image-writing performance.
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Payloads
Verifying Manual Focus Before an Aerial Mapping Block
Create a repeatable manual-focus check using representative distant detail, original-file review, documented settings, and specific reasons for rechecking.
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Payloads
Keeping a Fixed-Focal-Length Camera Calibration Traceable
Keep lens identity, focus, image dimensions, correction settings, and calibration evidence linked so a mapping camera model remains understandable between projects.
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Payloads
Dust Spots or Vignetting? Checking Aerial Photos Before Mosaicking
Separate recurring image-coordinate defects from real ground patterns, then document inspection, approved cleaning, and the effect on usable aerial photographs.
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