During the course of a year the sun will disappear from view at the North Pole on this date.
What is September 23 (or the vernal equinox)?
100
Where the days and nights are of equal length all year long.
What is 0 degrees latitude [or the equator]?
100
Warmer hillsides at are less likely to experience freezing conditions. [hint: the cold, dense air is found at the bottom of the valley]
What are thermal belts?
100
The ________ (north/south) facing side of a hill in a mountainous region in the US tends to receive less sunlight during a year than the other facing side of the hill.
What is north?
200
This records the daily low temperature.
What is a minimum temperature thermometer?
200
In the Northern Hemisphere, this day has the fewest hours of daylight.
What is the winter solstice [or December 21]?
200
The sun rises in the northeast and sets in the northwest at this time of the year for those in the Northern Hemisphere (you and me!).
What is the summer solstice or June 21?
200
Infrared radiation emitted by the earth's surface causes this.
What is radiation inversion?
200
One would expect the lowest temperatures to be found next to the ground on a ____________________ night.
A. clear, damp, windy night
B. cloudy night
C. clear, dry, calm night
What is C?
300
Lines connecting points of equal temperature.
What is isotherm?
300
The length of day (increases, decreases, does not change) between Christmas and New Year's at middle latitudes in the Northern Hemisphere.
What is increases?
300
Days and nights of equal length. The noon sun is directly overhead at the equator. The earth is not tilted toward nor away from the sun.
What is an equinox?
300
At this time during a 24 hour day, radiation temperature is best developed. (at sunset, near sunrise, toward the end of morning)
What is near sunrise?
300
The number of heating degree days for day with a maximum temperature of 30 degrees F and a minimum of 20 degrees F.
What is 40?
400
Determined by subtracting the mean temperature for the day from 65 degrees F.
What is heating degree day?
400
Our seasons are caused by these two things.
What is the angle of the sun and the length of day?
400
The reason why summers in the southern hemisphere are not warmer than summers in the northern hemisphere.
What is the southern hemisphere has more water [over 80% of the SH is covered with water]?
400
The lag in daily temperature refers o the time lag between the
A. time of max solar radiation and time of max. temperature
B. time of min. temperature and time of max solar radiation
C. min. and max. temperature for the day
What is A (time of maximum solar radiation and time of maximum temperature)?
400
The number of cooling days for a day with a maximum temperature of 95 degrees F and a minimum temperature of 65 degrees F.
What is 15?
500
A thermometer that measures temperature and records it on a piece of chart paper.
What is a thermograph?
500
In July at middle latitudes in the Northern Hemisphere, the day is ________ long and is _________ with each passing day.
(less than 12 hours, more than 12 hours, getting longer, getting shorter)
What is more than 12 hours and getting shorter?
500
Northern latitudes experience 24 hours of sunlight on June 22, but they are not warmer than southern latitudes. The reason for this is:
A. solar energy is spread over a larger area in northern latitudes
B. some of the sun's energy is reflected by snow and ice in the north
C. increased cloud cover reflects solar energy in the northern latitudes
D. all of these
What is D?
500
Assuming the night will remain clear, calm and unsaturated, the predicted minimum temp is 32 degrees F. Suddenly, the wind speed increases and remains gusty throughout the night. The min. temperature will most likely be
A. about the same as predicted
B. higher than predicted due to release of latent heat
C. much lower than predicted due to radiational cooling
D. higher than predicted due to mixing
What is D?
500
Peas are planted in Indiana on May 1. If the peas need 1200 growing days before they can be picked, and if the mean temperature for each day during May and June is 70 degrees F, the peas will be ready to pick in this many days.