Topographic Map Notes FIELD- Area where a value is measured. ISOLINES- a line connecting points of equal value.

Slides:



Advertisements
Similar presentations
Fields and Isolines.
Advertisements

Isolines An isoline is a line connecting points of equal value.
Types of Maps Mercator Projections Conic Projections
Topographic Maps.
Mapping.
Topographic Maps specialized maps which show the highs and lows (relief) of the Earth’s surface.
Visualizing Earth’s Surface
OBJECTIVES: Describe isolines and contour lines
Mapping Earth Midterm Review
Fields and Isolines !!!! We’re going to learn about Isolines…isn’t that awesome??? Whatever, just be quiet and learn.
Aim: What do isolines represent?
Fields & Isolines.
Interpreting a Topographic Map
Mapping Earth’s Surface
How can you Interpret a Weather Maps?. Weather Maps are used to show the current state of the atmosphere and to forecast future conditions.
Measuring Earth Notes: Pages When might someone use a topographic map?
Measuring Earth. Do Now Think of a way to organize the numbers on your table.
Isolines: contour lines on an elevation map Isotherms: contour lines on a temperature map Isobars: contour lines on an air pressure.
Measuring Earth Notes: Pages Earth’s Spheres Information regarding Earth’s atmosphere can be found on page of the ESRTs.
OBJ: Given notes and activity sheets SWBAT construct and interpret isoline maps such as a weather map with 70% accuracy. DN: Copy notes ACT: Introduction.
Interpreting a Topographic Map
Isolines Isolines = lines that connect points of equal values. (iso = equal) The “values” can be anything… temp, pressure, elevation, etc.
Measuring Earth. What do hachured lines show?
Measuring Earth / Topographic Mapping. Mapping Basics Vocabulary: Contour Interval: the difference in elevation represented by each contour line on a.
Measuring Earth Notes: Pages Earth’s Spheres Information regarding Earth’s atmosphere can be found on page of the ESRTs.
How Do We Construct Maps Using Isolines What are Isolines?
Ms. Susinno FIELD MAPPING AND ISOLINES. A field map shows a region with a measurable quantity at every location.
What are topographic maps?. Topographic maps are also called contour maps A topographic map is a field map where the field value is elevation. Elevation-
Introduction to Topographic Maps
Visualizing Earth’s Surface
Measuring Earth Notes: Pages ©Mark Place,
Field mapping and Isolines
Mapping Earth’s Surface
Mapping Earth’s Surface
Topography Review DO NOW List three rules for drawing isolines.
Intervals Depressions Gradients Rivers
Measuring Earth Notes: Pages ©Mark Place,
Field Values A field value is any data or measurement that you have plotted on a map EXAMPLES: Elevation (Feet about sea level) Temperature (at different.
Isolines An isoline is a line connecting points of equal value.
Measuring Earth Unit 2 ©Mark Place,
Measuring Earth Unit 2 ©Mark Place,
Question of the Day What can maps tell us?
Field Maps.
Isolines An isoline is a line connecting points of equal value.
Measuring Earth Notes: Pages ©Mark Place,
Measuring Earth Notes: Pages ©Mark Place,
Topographic Maps.
Isolines Isolines are lines on a map that connect points of equal value. Mrs. Degl.
Field Maps Aim: What are fields?.
Types of Maps Mercator Projections Conic Projections
Isolines An isoline is a line connecting points of equal value.
Isolines An isoline is a line connecting points of equal value.
Isolines An isoline is a line connecting points of equal value.
Field mapping and Isolines
Isolines An isoline is a line connecting points of equal value.
Mapping Earth’s surface
Measuring Earth: Topographic Maps
An isoline is a line connecting points of equal value.
Isolines An isoline is a line connecting points of equal value.
Topographic Map Notes FIELD- Area where a value is measured.
Isolines An isoline is a line connecting points of equal value.
Isolines An isoline is a line connecting points of equal value.
Interpreting a Topographic Map
Do Now: Write down 3 observations about this map..
Field mapping and Isolines
Isolines An isoline is a line connecting points of equal value.
Isolines An isoline is a line connecting points of equal value.
How can we describe fields, isolines, and gradients on maps?
Isolines and Topographic Maps
Isolines and Topographic Maps
Presentation transcript:

Topographic Map Notes FIELD- Area where a value is measured. ISOLINES- a line connecting points of equal value.

Examples of isolines: Isotherms: points of equal temperature Isobar: points of equal barometric (air) pressure Contour Lines: points of equal elevation Isohyet: Points of equal rainfall Anything else you can get a value for. (The weather channel loves isolines !)

___ _____ _______ ___ _____ _______ ___ _ ___________ ___

Rules for Drawing Isolines: 1. All points on the line MUST have the same value  15 55 55  10

2. Isolines are gentle, curving lines- no sharp corners.  15 55 55  10

3. Isolines are always closed curves even though the map might only show part of it.

4. Isolines NEVER cross- this would mean that one point has two different values. 20° 30 ° 40 ° 50 ° 60 ° XX YY ZZ

5. Isolines usually have a parallel trend

6. The interval between 2 isolines must stay constant

6. We can infer any value that exists between 2 lines *X *Y *Z

8. Index Contour Lines Every 4 th or 5 th contour line is thicker and bolder and the elevation is shown on the line

9. Depression contour lines show areas where land sinks down- represented by…

What are the rules concerning hachured lines?

10. Rivers / Streams When a contour line crosses a river or stream they bend upstream Towards where the water comes from!!

11. Gradient shows how quickly the value changes from one point to another. How STEEP the hill or mountain is A steep (high) gradient- lines are close together. A gentle (low) gradient - lines are far apart. Steep area Gentle area

Gradient can be calculated using the formula

The elevation of Albany is 282 feet. The elevation at Binghamton is 1634 feet. Calculate the gradient to the nearest tenth of a ft/mi. Show all work. gradient = change in elevation distance = miles = 1352 ft 115 miles = 11.8 ft/mile

The elevation of Watertown is 99m. The elevation at Oswego is 144m. Calculate the gradient to the nearest tenth of a m/km. Show all work. gradient = change in elevation distance = km = 45 m 75 km = 0.6 m/km

If the distance between the two circled cities is 425 km, calculate the temperature gradient to the nearest hundredth? Show all work. gradient = change in temperature distance = = = 0.08 °F/km

Practice drawing isolines

Highlight all the data points with the same value.

Fill in gaps in data.

Connect the dots.

Go on to the next value.

Now try Practice 2!!!!!

Topographic Profiles Profiles show the side view of the land

Please match the contour map on the left with the profile on the right.

What are the steps to draw a topographic profile place a piece of SCRAP paper between the 2 points MARK where every contour line touches the edge of the paper determine the elevation of each mark place the paper on the graph and PLOT the elevation of each contour line