Second Meeting PPT

Question 1

basis for the structural attributes of the photographic appearance of a particular rock type

Answer 1

climate, amount of relief

Question 2

one of the first and most important criteria to follow for lithology identification

Answer 2

determining the climatic environment and associating type of erosional environment

Question 3

T or F: We need to study lineaments to determine whether it represents a fault, dyke, or joint

Answer 3

True

Question 4

Are massive, isotropic, homogenous, and has cross-cutting relations with country rocks. Has different shapes and dimensions (e.g. batholiths, laccoliths, dykes, sills, etc.)

Answer 4

Intrusive igneous rocks

Question 5

intrusive igneous rocks forms hummocky or rounded dome-like topography in which climatic region

Answer 5

humid region

Question 6

name an example of a criss-cross relationship by forming a
narrow ridge

Answer 6

quartz reef

Question 7

drainage patterns of intrusive igneous rocks

Answer 7

rectilinear or dendritic drainage

Question 8

tone of basic intrusives and extrusives

Answer 8

dark to black

Question 9

Associated volcanic landforms, lavaflows, cones, craters, plug, volcanic necks, flat topped plateaus, etc., with successive flow structure

Answer 9

extrusive igneous rocks

Question 10

extrusive igneous rocks show lobate patterns of vegetation and topography, which is ________ in arid regions, and ________ in humid.

Answer 10

sparse; luxuriant

Question 11

drainage patterns of extrusive igneous rocks

Answer 11

dendritic or radial drainage

Question 12

tone of acidic intrusives and extrusives

Answer 12

light and uniform tone

Question 13

extrusive igneous rocks has what rate of erosion?

Answer 13

active rate

Question 14

rocks that are difficult to identify in aerial photographs due to its small-scale distinguishing characteristics

Answer 14

metamorphic rocks

Question 15

structural trends in metamorphic rocks

Answer 15

foliations

Question 16

Parallel alignments of ridges may reflect regional cleavage, foliation, or fold axis, and may suggest:

Answer 16

metamorphic rocks

Question 17

The most prominent feature of sedimentary rocks

Answer 17

bedding

Question 18

due to differential erosion of sedimentary rocks, beds appear as ________________ on aerial photographs.

Answer 18

banded patterns

Question 19

this can also be used to recognize and mark the beds in absence of topographic expressions

Answer 19

topographic tone (banding due to vegetation or soil
differences)

Question 20

Bedding may be most prominent in which stage of the geomorphic cycle

Answer 20

mature stage

Question 21

remotely-sensed imagery are taken by these two types of scanners, namely:

Answer 21

across-track scanner (whiskbroom) and along-track scanner (pushbroom)

Question 22

scanner which uses rotating or oscillating mirror; scans the terrain along scan lines that are at right angles to the flight line

Answer 22

across-track (whiskbroom)

Question 23

across-track data are collected within an arc below the aircraft typically of

Answer 23

90° to 120°

Question 24

incoming energy in whiskbroom scanner is separated into
several spectral components that are sensed

Answer 24

independently

Question 25

what the scanner sees

Answer 25

Instantaneous Field of View (IFOV)

Question 26

residence time of measurement

Answer 26

dwell time

Question 27

relationship between signal coming from the target to extraneous/background electronic noise

Answer 27

signal to noise ratio

Question 28

ground resolution element or ground resolution (D)

Answer 28

spatial resolution

Question 29

the ability to discriminate very slight energy differences

Answer 29

radiometric resolution

Question 30

ability to discriminate fine spectral differences

Answer 30

spectral resolution

Question 31

T or F: ground distance between adjacent sampling points in a digital scanner image need not necessarily exactly equal the dimensions of IFOV projected onto ground

Answer 31

True

Question 32

ground distance between 2 lines that can be distinguished in a photograph

Answer 32

ground resolution distance

Question 33

this scanner records multispectral image data along a swath beneath an aircraft; has no scanning mirror, linear array of detectors is used

Answer 33

along-track scanner (pushbroom)

Question 34

size of the ground resolution cell is determined by the __________of a single detector projected onto the ground

Answer 34

IFOV

Question 35

advantages of along-track scanner (pushbroom)

Answer 35

• longer dwell time
• robust geometric integrity
• smaller in size and weight
• higher reliability and longer life
  expectancy

Question 36

disadvantages of along-track scanner (pushbroom)

Answer 36

• needs more calibrations
• limited spectral sensitivity of
  commercial detectors

Question 37

used in land cover, vegetation, surface mineralogy, and surface water mapping, where measurements are made for different ranges of the EM spectrum

Answer 37

multispectral images

Question 38

when was the first Landsat satellite launched

Answer 38

1972

Question 39

NOAA-17

Answer 39

National Oceanic and Atmospheric Administration

Question 40

oldest civic Earth observation program

Answer 40

Landsat-7

Question 41

first program that released processed data

Answer 41

Terra ASTER

Question 42

used by French, Swedish, and Belgian governments

Answer 42

SPOT-5