science

Southern California Coastal water resource subregion

Southern California Coastal water resource subregion is a 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 Southern California Coastal water resource subregion rather than just read about it. In short: Southern California Coastal water resource subregion (HUC 1807) is one of 10 hydrologic subregions within the California water resource region and is one of 222 water resource subregions in the United States hydrologic unit system. The Southern California coastal subregion, sometimes called the South Coast Hydrologic Subregion, is a second-level subdivision covering is approximately 11,000 mi2 (28,000 km2; 7,000,000…

Key takeaways

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

Reference excerpt

Southern California Coastal water resource subregion (HUC 1807) is one of 10 hydrologic subregions within the California water resource region and is one of 222 water resource subregions in the United States hydrologic unit system. The Southern California coastal subregion, sometimes called the South Coast Hydrologic Subregion, is a second-level subdivision covering is approximately 11,000 mi2 (28,000 km2; 7,000,000-acre) and extends from Rincon Creek on the north to the international border with Mexico on the south. The South Coast Hydrologic Subregion is composed of three third-level hydrological units. The federally defined Southern California Coastal water resource subregion equates roughly with the state-designated South Coast hydrologic region. Per a USGS report of 1976, "Water deficiency is prevalent in the South Coastal subregion." By 1955 the region was found to be experiencing measurable levels of saltwater intrusion due to overdrawn aquifers and several wells were abandoned as a consequence. Part of the solution was injecting Colorado River water from the aqueduct into local wells to defend against the salted water, a practice called artificial recharge.

List of Southern California Coastal subregion basins

See also Groundwater recharge Water in California Principal aquifers of California

References

Illustrations

Worked examples

Example 1 — a first encounter with Southern California Coastal water resource subregion

Start with the simplest possible case. Write down what Southern California Coastal water resource subregion claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In 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 Southern California Coastal water resource subregion 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 Southern California Coastal water resource subregion 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 Southern California Coastal water resource subregion

In research: Southern California Coastal water resource subregion appears in 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 Southern California Coastal water resource subregion 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: Southern California Coastal water resource subregion is common in secondary-school and first-year university syllabi. It links to neighbouring topics California water resource region, Geography of California, Lists of drainage basins, so understanding it makes those chapters shorter.
In everyday life: Look for Southern California Coastal water resource subregion 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Southern California Coastal water resource subregion” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Southern California Coastal water resource subregion in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Southern California Coastal water resource subregion 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 Southern California Coastal water resource subregion out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Southern California Coastal water resource subregion in simple terms?

Why does Southern California Coastal water resource subregion matter?

Because it connects several 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 Southern California Coastal water resource subregion?

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 Southern California Coastal water resource subregion.