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NWPHYS006 — Use remote sensing for hydrographic surveying

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What an assessment for NWPHYS006 must cover

46 assessable components: 2 elements (11 performance criteria), 7 performance evidence and 28 knowledge evidence requirements. An audit-defensible tool maps every question and task back to these — that mapping is the coverage matrix Auditori generates alongside the assessment.

Elements & performance criteria

1 Use LiDAR for data collection and analysis

  • 1.1Collect and analyse data using topographic and bathymetric LiDAR for a hydrographic survey according to workplace procedures
  • 1.2Analyse the environmental and operational environments in which bathymetric LiDAR surveys are complementary to echo sounder surveys
  • 1.3Use appropriate hydrographic equipment to gather data for survey
  • 1.4Extract high and low water lines from LiDAR data sets
  • 1.5Use computer aided design (CAD) to graphically represent data sets
  • 1.6Determine the level of turbidity using appropriate equipment

2 Use remotely sensed data

  • 2.1Calculate data sources in remotely sensed bathymetric data and determine the associated spatial parameters
  • 2.2Create a shoreline map from images and aerial photographs using geometrical properties
  • 2.3Analyse the optical characteristics of coastal terrain and floors
  • 2.4Analyse methods of bottom detection in forming a hydrographic survey
  • 2.5Analyse remote sensing techniques according to workplace procedures

Performance evidence

  • analysing the different methods of bottom detection
  • analysing the differences in remote sensing techniques
  • determining the level of turbidity
  • extracting high and low water lines from bathymetric and topographic LiDAR data sets, combining with other spatial data and using computer aided design to represent graphically
  • scanning frequency and pattern in relation to power, coverage and spatial density
  • using and selecting appropriate hydrographic equipment
  • using LiDAR to collect and analyse data

Knowledge evidence

  • characteristics of hydrographic equipment including:
  • echo sounders
  • satellite bathymetry
  • combined bathymetric and topographic LiDAR systems
  • floor optical characteristics and bottom detection
  • influence of geometry and waveform on feature detection
  • influence of water surface roughness and water column turbidity on the beam pattern and penetration
  • integration of components including:
  • attitude compensation
  • networking
  • sensor offsets
  • time stamping
  • multispectral imagery including:
  • reflectance in relation to wavelength
  • terrain characteristics
  • optical characteristics of coastal terrain
  • principles, capabilities and limitations of LiDAR systems
  • principles of wavelength, water penetration and ground detection
  • remote sensing techniques including:
  • hyperspectral
  • multispectral
  • satellite derived bathymetry (SDB) techniques and procedures
  • spatial resolution and accuracy with relation to multi spectral imagery and satellite derived bathymetry
  • Secchi disc and Secchi depth
  • techniques for LiDAR systems including:
  • bathymetric
  • topographic
  • wavelength performance with different interfaces including water and ground

Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.

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Questions about assessing NWPHYS006

What does an assessment tool for NWPHYS006 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for NWPHYS006 needs to address all 46 unit components: 2 elements with 11 performance criteria, 7 performance evidence requirements, 28 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.

How does Auditori generate an assessment tool for NWPHYS006?

Auditori pulls the current release of NWPHYS006 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.

Is the first assessment tool really free?

Yes. Every new account includes one free credit — enough to generate the complete assessment tool for NWPHYS006 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing NWPHYS006 assessment instead of generating a new one?

Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of NWPHYS006, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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