Sonar is used to map the ocean floor. If an ultrasonic signal is received 3.2 s after it is emitted, how deep is the ocean floor at that location?
*note- speed for sonar of 1500 m/s
The signal needs to travel to the floor and back. Thus it needs to travel "twice" the distance of the depth of the ocean floor. If it receives a signal 3.2 seconds later, then the time to go half that distance is 1.6 seconds. That is also the time needed to go just to the ocean floor.
Distance = velocity*time
D = 1500 m/s * 1.6 s = 2400 m, note how the seconds cancel out.
Since the publication of Jerlovs classic volume on optical oceanography in 1968, the ability to predict or model the submarine light field, given measurements of the inherent optical properties of the ocean, has improved to the point that model fields are very close to measured fields. In the last three decades, remote sensing capabilities have fostered powerful models that can be inverted to estimate the inherent optical properties closely related to substances important for understanding global biological productivity, environmental quality, and most nearshore geophysical processes. This volume presents an eclectic blend of information on the theories, experiments, and instrumentation that now characterize the ways in which optical oceanography is studied. Through the course of this interdisciplinary work, the reader is led from the physical concepts of radiative transfer to the experimental techniques used in the lab and at sea, to processoriented discussions of the biochemical mechanisms responsible for oceanic optical variability. The text will be of interest to researchers and students in physical and biological oceanography, biology, geophysics, limnology, atmospheric optics, and remote sensing of ocean and global climate change. Author: Spinrad, Richard W./ Carder, Kendall L./ Perry, Mary Jane Series Title: Oxford Monographs on Geology and Geophysics Series Number: 25 Binding Type: Hardcover Number of Pages: 304 Publication Date: 1994/01/06 Language: English Dimensions: 9.20 x 6.32 x 1.05 inches
Optics gives a comprehensive and balanced account of traditional optics as well as some of the recent developments in this field while meeting the requirements of a course on optics meant for undergraduate students of science and engineering.
Account limit of 2104 requests per hour exceeded.
Getting Started with the NanoCalc Reflectometer
fans of Gojira, Tool, Opeth, Meshuggah or The Ocean?
least favorite song by those bands?
for me -
Gojira - Wolf Down the Earth
Tool - Bottom
Opeth - Black Rose Immortal
Meshuggah - Pineal Gland Optics
The Ocean - Tonian
Leah...hates...tool
excuse me while i cry in a corner
for those of you who haven't heard the Ocean, go to YouTube and type in Ectasian.
oh man that is tough...those are some of my favorite bands ever!
Gojira - From Mars
Tool - I would probably agree with Bottom
Opeth - I would also agree with Black Rose Immortal
Meshuggah - Re-Inanimate
The Ocean - sorry don't know them well enough to have a least fav
edit...wow, how can you HATE Tool? I hope that person at least has enough brain cells to respect them and realize how amazing they are, even if you don't like the music.
Sorry Killer Peaches...I didn't realize you know everything about music.
Sorry, comments for this entry are closed at this time.
Sorry, comments for this entry are closed at this time.