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NWPHYS003 — Manage and analyse water levels and flows

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What an assessment for NWPHYS003 must cover

66 assessable components: 4 elements (13 performance criteria), 5 performance evidence and 48 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 Apply principles of water levels

  • 1.1Analyse tidal characteristics in terms of tide raising forces and local and regional morphological features in hydrographic survey
  • 1.2Evaluate the effect of non-tidal influences on tidal water levels in hydrographic survey
  • 1.3Evaluate the impact of sources of water level variations occurring in inland waters

2 Use water level measurement methods

  • 2.1Determine the appropriate type of electronic water level gauge when calculating water level measurements according to manufacturer instructions
  • 2.2Configure electronic water level gauges for logging data, data communication, data download and for network operation with appropriate quality control measures
  • 2.3Compute tidally based reference levels on the basis of tide time series
  • 2.4Determine vertical reference levels in rivers and lakes according to workplace procedures
  • 2.5Determine uncertainty in water levels to uncertainties in measurement, duration and distance from the electronic water level gauge according to workplace procedures

3 Analyse water level data

  • 3.1Obtain and interpret water level and flow data according to workplace procedures
  • 3.2Use tidal information and vessel parameters to reduce soundings to a specified datum
  • 3.3Configure and calibrate Global Navigation Satellite System (GNSS) to reduce soundings to a specified survey datum

4 Analyse water movement

  • 4.1Determine the forces behind currents, change in currents and tidal streams
  • 4.2Calculate current measurement using appropriate techniques and methods for acquiring and displaying current data

Performance evidence

  • analysing and reporting on electronic water level gauge data and reducing to survey datum
  • applying tide tables and using appropriate software to determine predicted water levels and tidal streams
  • constructing a co-tidal chart
  • installing, levelling and calibrating an electronic water level gauge
  • portraying stream data

Knowledge evidence

  • aspects of a co-tidal chart
  • changes in water level caused by: atmospheric pressure
  • changes in water level caused by: ocean temperature
  • changes in water level caused by: precipitation
  • changes in water level caused by: seiches
  • changes in water level caused by: wind
  • electronic water level gauge installation techniques, establishment and levelling of associated survey marks
  • methods for measuring tidal streams and currents including: acoustic doppler current profilers (ADCP)
  • methods for measuring tidal streams and currents including: current meters
  • methods for measuring tidal streams and currents including: drogues
  • methods for measuring tidal streams and currents including: networks of electronic water level gauges
  • operating principles of electronic water level gauges including: acoustic sensors
  • operating principles of electronic water level gauges including: atmospheric pressure including vented and unvented
  • operating principles of electronic water level gauges including: float
  • operating principles of electronic water level gauges including: GNSS buoys
  • operating principles of electronic water level gauges including: radar
  • operating principles of electronic water level gauges including: tide poles, boards and staffs
  • methods for planning current and tidal stream surveys
  • methods for reduction of survey data to a datum using: GNSS observations
  • methods for reduction of survey data to a datum using: lever-arms and position reference point offsets
  • methods for reduction of survey data to a datum using: predicted tides versus measured tide reduction
  • rectilinear and rotary tidal streams
  • relationship between tidal stream and tides
  • vertical datums for sounding reduction
  • water level observations
  • reference levels including mean sea level (MSL), chart datum, and mean high water
  • river and lake datums
  • surface current radar observations
  • tidal fundamentals including: amphidromic points and co-tidal charts
  • tidal fundamentals including: geomorphological influences on tidal characteristics
  • tidal fundamentals including: major harmonic constituents and different types of tide
  • tidal fundamentals including: tide generating forces, the equilibrium and real tides
  • tidal information including: current tables
  • tidal information including: tidal stream
  • tidal information including: tide table
  • tidal information including: tide prediction tools
  • uncertainties associated with: duration of observations
  • uncertainties associated with: measurement devices
  • uncertainties associated with: spatial separation of water level measurements
  • vessel motion characteristics including: draft
  • vessel motion characteristics including: settlement
  • vessel motion characteristics including: squat
  • water level variations occurring in: canals
  • water level variations occurring in: estuaries
  • water level variations occurring in: inland lakes
  • water level variations occurring in: reservoirs
  • water level variations occurring in: rivers
  • water level variations occurring in: wetlands

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 NWPHYS003

What does an assessment tool for NWPHYS003 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for NWPHYS003 needs to address all 66 unit components: 4 elements with 13 performance criteria, 5 performance evidence requirements, 48 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 NWPHYS003?

Auditori pulls the current release of NWPHYS003 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 NWPHYS003 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing NWPHYS003 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 NWPHYS003, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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