Cruiser (Inventory Assessment)

Realistic resource assessments for realistic tree assessments

Atlas Cruiser enables the forest manager to reliably estimate yields using forest inventory assessments.

The Cruiser tree description method takes stem assessment from an art form to a science, since features of the stem are recorded quantitatively. Business requirements can be considered when the type of cutting strategy is selected. The strategy can be either cutting logs to a priority list or cutting logs to maximise value. Growth models can also be used to calculate potential yields at future harvest dates.

Log Cutting Decisions Based on Accurate Stem DescriptionsEach stem feature is individually assessed to build up a comprehensive description of the stem. Detailed branching, quality and sweep specification of log grades to fully exploit the new stem description.
Comprehensive yield tables created efficientlyCreate scenarios of multiple assessments, cutting strategies and harvest dates, analyse and report them in one step.
Automated processing of large jobs for different scenariosMultiple scenarios can be batch processed by using command-line scripts.
New reports created easily to meet business needsThe Cruiser user interface provides a powerful tool to construct a wide variety of reports.
Previously completed analyses are availableResults of each analysis are stored in the database to provide ready access to results of analyses.
Growth models to predict future yieldsBoth Stand-level and Tree-level models are supported.
Branches growth modelled over timeBranch assessments can be used with models to predict branch size growth which improve calculations of potential future yields
Calculation of production thinning yieldsLog product yields are calculated for removed stems and residual stems grown forward
Prediction of wood densityA wood density model is available to allow for log products with minimum wood density requirements. Log product yields are calculated for removed stems and residual stems grown forward
Small area assessments using stem-based samplingA quick sample of a number of trees in a small part of stand about to be harvested will provide a useful indication of log product mix.
Assessments suitable for woodlotsSystematic sampling of individual trees, combined with total tree count, can efficiently predict log product yield
GIS connections for design of assessments and reporting across forest areasAssessments can be designed with the aid of a GIS and the GIS used to report the spatial distribution product yields.


Cruiser provides a straightforward assessment method to obtain a comprehensive and objective description for each stem.

There is no ambiguity about how to record details since stem features, such as branching, or sweep, are assessed independently. All that is required is for the assessor to take one feature; observe the entire length of the stem and record dimensions and start and end points for any occurrence of the feature. This process is repeated for each stem feature.

This method contrasts with MARVL Inventory

Where non-overlapping sections of the stem are assigned to classes defined by a unique combination of features. Because Cruiser does not require the field crews to translate features to coded sections, the resulting yield estimates are more repeatable between assessment crews. Cruiser analyses MARVL data by simply treating these sections as user-defined qualities.


It is possible to view and edit all of the assessment data from the one application

A hierarchy of folders can be created to organise assessment data into logical groups. The forest manager will find the layout and functionality easy to use as it is consistent with Windows® Explorer. For example, a click on the height column in the list view will sort all stems in a plot by height.


The Cruiser Inventory Assessments of stems ensure that potential yields can be reliably determined from the specified log-product definitions and strategies

There are two options for log cutting; to fulfill a priority list of log types or to achieve maximum value from each stem based on specified log prices. The log-product grade definitions and values used can be re-used or repeatedly changed. A wood density model is available to calculate log density so that any log products constrained by a minimum density can be incorporated. Recovery of top pieces and multi-breakage prediction can further refine yield estimates.


Cruiser predicts stand growth over time by using species-specific growth models based on stands or individual trees.

Branch size is a major determinant in log quality so yield predictions are improved by modeling branch growth over time using branch data from the inventory assessment. Log product yields produced by thinning a stand can be calculated by applying rules about which stems will be removed. The residual stems can be grown forward to provide any future thinning or clear-felling yield predictions.

Scenarios, which may be based on a number of assessed blocks, different harvest dates, and cutting strategies, can be selected interactively and analysed and reported at once. Alternatively, command-line scripts can be written to automate large processing jobs.

Cruiser fully supports the analysis of MARVL assessment data.

ATLAS Cruiser integration with ATLAS suite for Forest Management Tools

Integration between ATLAS modules enables information from one application to be accessed or presented within another which greatly increases the power of each individual module and the suite as a whole. For example, Assessment data can be collected by FieldMan and summaries can be stored in GeoMaster. The yield tables produced by Cruiser can be saved in Yield Table Manager so they are widely accessible.

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