computer science

TerrSet

TerrSet is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand TerrSet rather than just read about it. In short: TerrSet (formerly IDRISI) is an integrated geographic information system (GIS) and remote sensing software developed by Clark Labs at Clark University for the analysis and display of digital geospatial information. TerrSet is a PC raster-based system that offers tools for researchers and scientists engaged in analyzing earth system dynamics for effective and responsible decision making for environmental management…

Key takeaways

TerrSet belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect TerrSet to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of TerrSet from memory before moving on to harder problems.

Reference excerpt

TerrSet (formerly IDRISI) is an integrated geographic information system (GIS) and remote sensing software developed by Clark Labs at Clark University for the analysis and display of digital geospatial information. TerrSet is a PC raster-based system that offers tools for researchers and scientists engaged in analyzing earth system dynamics for effective and responsible decision making for environmental management, sustainable resource development and equitable resource allocation.

Features Key features of TerrSet include:

GIS analytical tools for basic and advanced spatial analysis, including tools for surface and statistical analysis, decision support, land change and prediction, and image time series analysis; an image processing system with multiple hard and soft classifiers, including machine learning classifiers such as neural networks and classification tree analysis, as well as image segmentation for classification; Land Change Modeler, a land planning and decision support toolset that addresses the complexities of land change analysis and land change prediction. Habitat and Biodiversity Modeler, a modeling environment for habitat assessment and biodiversity modeling. Ecosystem Services Modeler, a spatial decision support system for assessing the value of natural capital. Earth Trends Modeler, an integrated suite of tools for the analysis of image time series(time series) to assess climate trends and impacts. Climate Change Adaptation Modeler, a facility for modeling future climate and its impacts. GeOSIRIS-REDD, a national-level REDD planning tool to assess deforestation, carbon emissions, agricultural revenue and carbon payments. GeoMod, a land change modeling tool based around modeling unidirectional transitions between two land cover categories

History and background TerrSet was first developed in 1987 by Prof. J. Ronald Eastman of Clark University, Department of Geography. Dr. Eastman continues to be the prime developer and chief architect of the software. The software was initially named after cartographer Muhammad al-Idrisi (1100–1166). In June 2020 Clark Labs released the TerrSet 2020 Geospatial Monitoring and Modeling software, version 19. Besides its primary research and scientific focus, TerrSet is popular as an academic tool for teaching the principal theories behind GIS at colleges and universities. Since 1987 TerrSet has been used by professionals in a wide range of industries in more than 180 countries worldwide. In total, there are over 300 modules for the analysis and display of digital spatial information. TerrSet is managed and updated by Clark Labs. Based within the Graduate School of Geography at Clark University, Clark Labs and its software tools are known for advancements in areas such as decision support, uncertainty management, classifier development, change and time series analysis, and dynamic modeling. Clark Labs partners with organizations such as the Gordon and Betty Moore Foundation, Google.org, USDA, the United Nations, Conservation International, Imazon and Wildlife Conservation Society.

References

External links Official website Clark Labs Tech Notes Blog REDD Blog Earth Trends Blog IDRISI Canada Home Page IDRISI Brazil Website IDRISI Ecuador

Illustrations

Worked examples

Example 1 — a first encounter with TerrSet

Start with the simplest possible case. Write down what TerrSet claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to TerrSet before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about TerrSet ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of TerrSet

In research: TerrSet appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses TerrSet in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: TerrSet is common in secondary-school and first-year university syllabi. It links to neighbouring topics Clark University, GIS software, Remote sensing software, so understanding it makes those chapters shorter.
In everyday life: Look for TerrSet outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study TerrSet in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what TerrSet means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain TerrSet out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is TerrSet in simple terms?

Why does TerrSet matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study TerrSet?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on TerrSet.