10/6/10 Aim: What is a Field?

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10/6/10 Aim: What is a Field?. Do Now: R&amp;H p.26, A&amp;E #31-34 HW – Finish lab. Field – any region of the environment where a measurement can be taken at every location.

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### 10/6/10Aim: What is a Field?

Do Now: R&H p.26, A&E #31-34

HW – Finish lab

### Field – any region of the environment where a measurement can be taken at every location

Field Value – whatever aspect of the field that you choose to measure. Ex. Temp, pressure, density, rainfall, snowfall, elevation, etc.

Isolines – lines that connect points of equal field value.

Field Map- A map made of isolines that show a pattern of data and allow us to predict any location on the map.

Interval- the value of increase/decrease for each isoline.

Gradient = change in field value

change in distance

• The closer spaced your isolines are the greater the gradient between the two locations.
• Field maps generally have energy that flows from a source (highest value) to a sink (lowest value).
Types of Isolines and Field Maps
• Isotherm- connects points of equal temperature.
• Isobar- connects points of equal air pressure.
• Isoyet- connects points of equal rainfall.
• Contour line- connects points of equal elevation.
10/7/10Aim: How do we make a field map?
• Do Now – Take a handout and draw the isothermal map.
• HW- Finish lab.