Base your answers to questions 66 through 68 on the information below about a solar eclipse that will occur on August 21, 2017. The latitude and longitude coordinates for the movement of the center of the Moon’s shadow across Earth’s surface are given in the table.
66 On the graph, plot with an X the path of the center of the Moon’s
shadow for each position given in the data table. Connect the Xs with a
smooth, curved line. Shadow position 1 has been plotted on the graph.[1]
67 The path of
the Moon’s
shadow will
be about
100 km
wide. On
the graph
shade the
area
between
positions 1
and 2 to
show the
width of the
Moon’s
shadow on
Earth. [1]
P.S./E. Sci.–August ’09
77 On the map, draw the 100-
inch snowfall isoline. Extend
the isoline to the edges of
New York State. [1]
78 The amount of snowfall for
Massena is shown on the
map. What was the amount of
snowfall for Massena? [1]
79 Which landscape region
contains Lake Ontario, the
moisture source for the high
snowfall totals? [1]
78 The amount of snowfall for
Massena is shown on the
map. What was the amount of
snowfall for Massena? [1]
The topographic map for 16 - 18 shows the location of a stream. Points A and B are locations on Earth’s surface.
16 What is the gradient between points A and B?
(1) 1 m/km (2) 2 m/km (3) 10 m/km (4) 20 m/km
17 Based upon the map, in which direction does the stream flow?
(1) North (2) South (3) East (4) West
18 Based upon the map, it appears that
(1) A is at a higher elevation than B
(2) B is at a higher elevation than A
(3) The gradient is least to the Southwest
(4) The highest contour line indicated is 150 m
Base your answers to 71 - 74
on the topographic map, that
shows a portion of the
Taterskill Creek flowing past
the towns of Lawson and
Glenton. The shaded area is
Taterskill Creek. The
arrows in the creek show its
direction of flow. Points A, B,
and C are locations on the map.
Points A and B are connected
with a reference line.
Mercado Dam is located 32 mi
upstream from Lawson. In the
remote possibility of a failure
of the Mercado Dam, the
Taterskill Creek is expected to
rise to the 600-ft contour line
in the vicinity of the two towns.
71 On the grid provided
below, construct a
topographic profile from
Point A to Point B. [3]
72 State a possible elevation
for point C. [1]
73 State the distance in miles along route 16 south of
the Taterskill Creek if you travel from River Road
intersection east toward the intersection with route 9. [1]
74 How many buildings are threatened by a possible flood? [1]