Transcript Slide 1

BY:
Jared Flores | Zoe Garibay | Mia Iwanaga | Sabrina Martinez
Jennifer Mills | Chandler Pascual |Anna Keziah Pidong
Joey Sumulong | Amy Valencia | Jamil Wilkerson
http://themis2.mars.asu.edu/fullimages/20040712a.jpg
Research Question
What causes wind streaks to be light or dark?
Why is our research question interesting/important?
Our research question is interesting
because this feature of Mars is very
unique. We have never investigated a
feature like this before. This question is
important because we can find out where
and what wind streaks pick up, either
debris or minerals. We can find out what
materials Mars contains. This will
eventually lead up to solving more
mysteries about Mars. Also, we can find
out how strong the wind is and what
humans can do with it. For example, if we
find out how strong the wind direction is, it
will determine if humans can go to that
certain location. And lastly, our research
question is important because it can help
us understand surface circulations on
Mars.
http://history.nasa.gov/SP-467/p42.jpg
Hypothesis
Sabrina, Amy, Anna:
If we look at a lot of wind streaks we will then see that most of them are light,
because there are more light colored debris than dark colored debris on Mars.
Jennifer, Mia, Jared:
If we look at a lot of wind streaks we will then see that most wind streaks are dark.
Most are dark because, when the crater hits the surface it digs into the sand. The
force of the impact digs into the sand, making it dark.
Jamil, Chandler, Joey:
If you have a wind streak and you expose it to certain elements for a certain period
of time, for example the dirt on the ground could rub off over time, [but not limited
to]. Then this would make older streaks darker, because they have been out longer
and newer streaks have not had time to become darker through the dirt rubbing off
etc.
ttp://themis2.mars.asu.edu/fullimages/20030917a.png
ttp://themis2.mars.asu.edu/fullimages/20030917a.png
http://www.nasm.si.edu/etp/mars/marsimg/mars_windstr.jpg
Crater or Other
Fixtures
Tail
http://byss.arc.nasa.gov/img-pds/imagepool/mgs/ab/ab_1_015_03_prv1.png
What are Wind Streaks?
• Result of wind erosion and deposition
• Change in Mar’s surface by taking
materials in one place and leaving it
behind another
• Wind, wearing out Mar’s surface that
contains old debris and providing it with
new material
• White trail of dust (the tail) coming
from usually a crater or other Mars
features
http://barsoom.msss.com/http/ps/moc/streak.gif
How do Wind Streaks form?
•By the interaction of wind with its surface features, such as craters
•Mostly formed by the Aeolian Process (like erosion, but is on Mars and forms around
craters)
-Wind picks up sediment with other small material and moves it through the wind,
until it is barely touching the sides of a crater
-Then, the wind picks up other adobe in the crater and moves it along to the other
side of the crater
•Dark Streaks:
-Forms when higher winds in the atmosphere when it flows down the lee side of
obstacles.
-Mostly occurs after large dust storms have occurred.
-Also occurs at night because the winds are at its strongest and the clearing
atmosphere is very stable at night.
•Light Streaks:
-Forms during dust storms when the atmosphere is more stable
-Mostly occurs in a zone of 30 degrees, North to 30 degrees, South
http://themis2.mars.asu.edu/fullimages/20091125a
What are some types of Wind Streaks?
• Bright and Dark Streaks are the most common Wind
Streaks
• Bright Streaks
-Mostly found in all surfaces
-Dispositional Feature
-Consists of fine, bright dust
-Forms during dust storms
-Usually occurs during summer in the south
• Dark Streaks
-Erosional Feature
-Made by Brighter Streaks
-Appears when no dust storm
-Rare
http://themis2.mars.asu.edu/zoom-20030917a
F:\Documents\Science\aeolian2.html
What are some examples of Wind Streaks?
• Image Number: V22220010 (A themis image found in the
MP2 website)
-Shows darker wind streaks in a group
-Tail are all facing one direction
-No brighter streaks near
• Orbit Number: 1695 (A THEMIS image found in the
THEMIS website)
-Shows brighter wind streaks in a group
of fine bright dust)
http://mp2.mars.asu.edu/
(Consists
-Tail is facing same direction, but opposite from
darker streaks
-Located on the low edge of volcano, Styris Major
http://themis.asu.edu/zoom-20020606a
Methods
Spacecraft
Camera
Image Type
NASA’s Mars Odyssey
THEMIS CAMERA
Visible Images- to see details within the crater
MOLA- to see context of image and depth
Geologic
Features
Studied
Geographic
Regions we
Focused on
Wind Streaks
> Light or Dark streaks
Regions on Mars that we are going to focus on is the
whole map.
Methods Continued
Sample Size
150 THEMIS images used to gather data
Categories of Data to
be collected and
“WHY”
•Image ID #: Keep track of the specific images
analyzed.
•Latitude/Longitude: Keep track of locations an their
proximity.
•Misc. data: to record any other interesting
information not warranted by our necessary data
categories, but, certainly important to our studies.
•Crater Size: to determine if the size of the crater
will affect the wind streak
•Color of Streak: can determine what materials or
debris are on Mars (to answer our question)
•Direction of Streak: will determine the color of the
wind streak
Measurements
Rough estimation relative to image parameter based
on THEMIS cameras visible image of 18km.
Data Chart
THEMIS Image ID
V00881003
V05487001
V05125001
V04797001
V03800003
V02451003
V07909002
V01243002
V05810009
V05484015
V12112008
V06236001
V01154003
V05598003
V05201001
Longitude (E/W)
175.46
184.42
184.06
283
211.49
230.03
175.48
175.21
202.46
243.72
235.07
183.85
195.28
222.2
152.81
Latitude (N/S)
-14.67
-5.06
-5.03
-5.17
39.55
4.17
-14.57
-14.81
8.79
6.89
31.33
-6.3
0.21
-13.05
-1.98
Crater Size
2 km
9 km
1 km
4 km
4 km
4km
4km
4km
9km
1 km
9 km
n/a
4 km
4 km
n/a
Color of Streak
dark
dark
dark
dark
n/a
n/a
dark
dark
n/a
white
white
n/a
dark
light/dark
n/a
Direction of Wind
west
n/a
n/a
west
n/a
n/a
east/west
north/west
n/a
east
east
n/a
north/east
east
n/a
Misc. Observation
all streaks are by each other
rampart crater,yardangs
yardangs
swirly layers
crater
landforms, channels
dust devils
craters
huge crater
terrain
crater
yardangs
yardangs
yardangs
yardangs
Region
Southern Hemi. On Mars
n/a
Medussae Fossae Formation
Valles Mariniers
Amazonis Planitas
Tharsis Montes
Gusev Crater
Gusev Crater
n/a
Pavonious Mons
Olympus Mons
Many Regions on Mars
Nicholson Crater
Daedalia
Many Regions on Mars
THEMIS Image ID Longitude (E/W) Latitude (N/S)
V24156002
225.28198
-10.930817
V24081002
228.14809
-15.695228
V22171016
225.92314
36.851776
V10328012
215.77808
17.558004
V20124005
234.51614
32.048138
V20306002
35.203373
72.12318
V19450018
233.6171
8.874918
V19141001
173.79433
-6.968096
V19750010
219.47023
6.479533
V20051001
204.53053
-1.2067
V16455052
229.49901
7.8661187
I11789020
218.9977
-15.988066
V02326006
68.798035
1.450829
V06446025
220.96748
8.757954
V01992002
174.68826
-6.70975
V03800003
39.550827
211.49228
V02451003
230.03616
4.171564
V07909002
175.4821
-14.579002
V01243002
175.21605
-14.816523
V24568002
220.06761
-14.313774
V26418005
131.92679
-15.452253
V12112008
235.0738
31.333147
V10539011
249.05852
16.503712
V01154003
195.28212
0.215326
V05201001
152.81.311
-1.984086
V05598003
222.20683
-13.051391
V05103010
79.311035
54.47551
V012448003
17.7199
-46.3087
V02544010
68.40186
7.032455
V01380006
159.07
15.07
Crater Size
1.5
2
1&3
N/A
3.5
N/A
N/A
1
2
1
0
2
1
0
1
2
N/A
1
1&3
2
1
2
1
2
Half
5
1
4
1
1.5
Color of Streak
light and dark
light and dark
light
N/A
light
N/A
N/A
Dark
light and dark
light
light and dark
light
Dark
light
light and dark
light
N/A
dark
dark
light
light
light
dark
N/A
N/A
light
light
N/A
light
light
Direction of Streak
west
southwest
northwest
N/A
west
N/A
N/A
northwest
west
northeast
southeast
North,North,East
East
east
northeast
9 o'clock
N/A
3 o'clock
3 o'clock
9 o'clock
5 o'clock
9 o'clock
2 o'clock
N/A
N/A
9 o'clock
8 o'clock
N/A
7 o'clock
7 o'clock
Region
Arsia Mons
Arsia Mons
Lycus Sulci and Aheron Fossae
Lycus Sulci and Olympus Mons
Tharsis
North polar Caps (plains)
Lava Places
Apollinanis Patera
Olympus Mons
N/A
Cigas Sulci
Gorgi Dursum + Amazonis Mensa
Syrthis Major
N/A
N/A
Amazonis Plantia
Tharsis Montes
Middle of Gusev Crater
Middle of Gusev Crater
Arsia Mons
Floor of Herchel Crater
Alba Patera (SW) Olympus Mons(NE)
Asceraeus Mons(NW)
Floor of Herchel Crater
N/A
N/A
N/A
Floor of Kaiser Crater
Meroe Patera (Within Sytris Major)
Cerberus
Themis Image ID/ Orbit #
V25995021
34916
34816
216189
27405
33905
35178
25995
V25995021
V2156002
I11789002
V12349013
V12112008
V05598003
V06147001
V26359005
28.9
V26383052
36.71
V264004027 152.27
V26305001 153.39
V26085008
13.75
V26286007 334.77
V26167001 174.15
V26027010 226.13
V26004010 187.35
V26124007 325.69
V25980021 141.05
V23270003 223.75
V24532002 178.92
Longitude Latitude
Crater Size Color of Streak Direction of Streak Region
Misc. Observations
69.40919
9.378468
336.169 light gray
west
N/A
wind streak
N/A
N/A
N/A
light gray
west
N/A
wind streak
N/A
N/A
N/A
light gray
west
N/A
wind streak
N/A
N/A
N/A
light gray
1 west,1 east
N/A
wind streak
N/A
N/A
N/A
light gray
west
N/A
wind streak
N/A
N/A
N/A
light gray
west
N/A
windstreak
N/A
N/A
N/A
dark gray
west
N/A
wind streak
N/A
N/A
N/A
1 dark,1light
west
N/A
wind streak
69.40919
9.370468 N/A
light gray
west
N/A
wind streak
225.28918
-10.930817 N/A
light gray
west
N/A
wind streak
214.9977
-15.988066 N/A
light gray
north
N/A
wind streak
237.11504
23.183582 N/A
light gray
west
N/A
wind streak
235.0738
31.33147 N/A
light gray
south west
N/A
wind streak
222.20683
-13.051391 N/A
dark gray
west
N/A
wind streak
230.37257
-7.801914 N/A
dark gray
west
N/A
wind streak
-47.95 NONE DARK GRAY WEST YARDANGS
CHRYSE PLANITIA
13.61 NONE DARK GRAY N/E
WIND STREAK
TEMPE TERRA
23.85 4.2 KM GRAY
N/W
SAND DUNES
ARSIA MORIS
-3.83 7.2 KM BLACK
NE/NW ROCKY,ROUGH
CHRYSE PLANITIA
-46.8 3.3 KM BLACK
ALL
DEEP CRATERS
OLYMPUS MONS
-48.56 10.3 KM LIGHT GRAY ALL
CROWDED W/ BLACK DOTS, SMOOTH UTOPIA PLANITIA
-6.98 8.5 KM GRAY
WEST YARDANGS
CERBERUS
8.2 0.4 KM GRAY
SE
DUST DEVIL TRACKS
OLYMPUS MONS
-60.12 1.1 KM BLACK/GRAY NORTH FAULTS/CRACKS
CHRYSE PLANITIA
-59.72 1.3 KM LIGHT GRAY SOUTH LAYERS
THARSIS
1.43 2.2 KM GRAY
NE
LAYERS
SOLIS PLANUM
-12.03 5.5 KM LIGHT GRAY SOUTH FAULTS,CRATERS,CHANNELS
OLYMPUS MONS
-11.42 4.3 KM GRAY
NORTH LAYERS,YARDANGS,DUST
ISIDIS PLANITIA
THEMIS Image ID Longitude (E/W) Latitude (N/S) Crater Size Color of Streak
V00943001
188.51
-6.74
4.5 N/A
35775
156.827
-3.7692
9 N/A
35488
153.856
-2.6176 N/A
N/A
35472
228.021
8.3097 N/A
N/A
35178
68.6541
7.6435
3 Light
34916
65.2126
9.2648
2.8 Light
34898
226.415
26.9082 N/A
N/A
34816
68.8324
10.5168
3.2 Light
33974
253.323
-62.7494 N/A
N/A
V08060012
132.48
-60.08
8.5 N/A
33501
215.012
-69.5084
3 N/A
7996
179.513
-55.7682 N/A
N/A
7984
162.262
-66.5111 N/A
N/A
33279
149.406
-57.7744
1.8 N/A
33198
329.914
-47.1954 N/A
N/A
Orbit Number
Longitude Latitude
Crater Size
35178 n/a
n/a
n/a
16760
70.15
0.14 n/a
34916 n/a
n/a
n/a
34918 n/a
n/a
n/a
34816 n/a
na
n/a
24155
225.28
-10.9 n/a
12346
237.115
23.18 n/a
Color
dark
light
dark grey
white
white
dark
dark grey
Direction Of Streak
N/A
N/A
N/A
N/A
West
West
N/A
West
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Region
N/A
Zephyria Planum
Zephyria Planum
Olympus Mons
Meroe Patera
Styris Major Planum
Lycus Sulci
Styris Major
Aonia Terra
Planum Chrome
Terra Sirenum
Terra Cimmeria
Terra Cimmeria
Planum Chronium
Argrye Planitia
Direction of Streak
west
s/west
west
west
west
west
s/west
Region
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Misc. Observation
Medse Fossae Formation
Dark Slope Streaks
Wind Eroded Yardangs
linear dunes
Wind Streak Tails
Wind Streaks
Dark Slope Streaks
Wind Streaks
Dust Devil Tracks
Dust Devil Tracks + Dunes
Dust Devil Tracks
Dust Devil Tracks
Dust Devil Tracks
Dust Devil Tracks
Dust Devil Tracks
Misc. Observations
windstreaks
Craters
windstreaks
windstreaks
Craters
windstreaks
windstreaks
THEMIS Image Longitude (E/W) Latitude (N/S) Crater Size Color of Streak
V03562003
229.74
4.5 n/a
n/a
V01433010
69.38
6.87 4 km
light
V07998013
120.24
-61.31 8 km
n/a
V07733006
203.93
-55.53 2 km
n/a
V04924007
201.18
53.8 1 km
dark
V01354003
209.15
-44.49 .5 km
n/a
V02539007
213.66
14.68 n/a
n/a
V02287006
284.56
37.36 1 km
dark and light
V01237004
342.56
-15.06 1 km
n/a
V01246011
63.34
10.88 5 km
really bright
V01054003
200.83
11.21 n/a
n/a
V08506017
214.62
18.65 n/a
n/a
V03635002
311.66
-7.89 n/a
n/a
V06386004
177.29
-11.94 4 km
n/a
V0881003
175.46
-14.67 .5 km
dark
T HE MIS image ID L ongitude L atitude
C rater S iz e C olor of s treaks
V31967001
222.16629 -6.535504
3 light and dark
V31654001
226.4685 -0.834055
5 D ark
V27503001
151.92351 -1.798354 N/A
N/A
V27488002
223.62804 -9.741061
3 L ight
V27240035
150.92119 1.113392 N/A
N/A
V25995021
69.40919 9.378468
5 L ight
V25915021
216.42201 2.728129 N/A
N/A
V06496024
219.37392 11.460439
16 N/A
V06212002
156.08736 -5.490211 N/A
N/A
V07640001
14.100422 -6.299115
3 light
V26903003
180.41574 -11.607173 N/A
N/A
V23383001
205.0125 -4.560999 N/A
N/A
V24477003
319.54837 -49.38547 N/A
N/A
I24532007
151.57048 -0.119257 N/A
N/A
V2435004
22.11071 -53.99004
8 N/A
Direction of Streak Region
n/a
N/a
north/east
N/a
n/a
Terrain filled with dust devil tracks
n/a
Southern Highlands
south/west
Hills, Mounds, and Valleys
n/a
Terra Sirenium
n/a
Olympus Mons
NE/Se
Near Labeatis Mons
n/a
N/a
east
Syrtis Major
n/a
Medusae Fossae Formation
n/a
Lycus sulci
n/a
Ganges Chasma
n/a
N/a
north west
Gusev
D irec ion of s treaks
R egion
W es t
W es tern D uedalia
Northeas tern
P avonis Mons
N/A
N/A
W es t
D aedalia P lanum
N/A
N/A
W es t
S yrtis Major P lanum
N/A
Medus a F os s a F or.
N/A
N/A
N/A
Zephyris P lanum
s outhwes tern
S inus S abaeus
N/A
N/A
N/A
Medus a F os s a F or.
N/A
Argyre B as in
N/A
Zephyris P lanum
N/A
Noac his T erra
Light and dark windstreaks
amount of streaks
60
50
40
30
20
10
0
light
color of streak
Series1
dark
MOLA: Dark Streaks
Locations of Dark Streaks
90
60
Latitude
30
0
Series1
-30
-60
-90
0
90
180
Longitude
270
360
MOLA: Light Streaks
Locations of light streaks
90
60
Latitude
30
0
Series1
-30
-60
-90
0
30
60
90
120
150
180
Longitude
210
240
270
300
330
360
MOLA: Light & Dark Streaks
Location of Dark & Light Streaks90
60
Latitude
30
0
Series1
-30
-60
-90
0
30
60
90
120
150
180
Longitude
210
240
270
300
330
360
Conclusion
• What did your group learn from the data you
collected? Refer to your science investigation
question.
• What would you do differently to make your
investigation better? (Think about the data
collected and the way you analyzed it or the
question you formulated.)
• Explain what scientific question could branch off
of this study to further scientific research about
Mars.
What did your group learn from the data you
collected? Refer to your science investigation
question.
• There are more light colored streaks than dark streaks.
> 52 out of 92 (light streaks)
> 34 out of 92 (dark streaks)
• Light & Dark streaks are rare
> 6 out of 92 (both streaks)
• Most light wind streaks occur or are found east
• Most dark wind streaks occur near the 180 degrees
longitude, 0 degrees latitude mark
• Most light & dark wind streaks occur more east
• Rarely any streaks at the edges of Mars (farther out)
What would you do differently to make your
investigation better? (Think about the data
collected and the way you analyzed it or the
question you formulated.)
• Observe more images that contain more
samples of wind streaks.
- Had a lot of THEMIS pictures without our
feature
- Gathered a small amount of observations
containing wind streaks.
Explain what scientific question could
branch off of this study to further scientific
research about Mars.
• Why do light wind streaks go the opposite way of
dark wind streaks?
> Shows the wind patterns for Mars
> Can tell scientists if light or dark wind streaks
can be near each other