lab1key

lab1key - Exercise 1. Bathymotry—tho Shape of” the...

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Unformatted text preview: Exercise 1. Bathymotry—tho Shape of” the 53“ Floor‘ This exerctsea should be'th'efétlr‘st tn-theicthbqfatorwsdéblchg$3 It" stddehts’ to H ‘ conversion between units, the concert! Bf seal'oi,"ahd“the art bf c’ontburlngg“ For the latter, the instructor may want to wart; thrgugh a ,tgw contoyr llhqs‘gvtth_ the gtuct‘ents ongn oyethead. ; 1. a. See contouredf'éigure: 1:5 betpw. "ar‘he‘isqgtathdin._I36bath~aflbwp aisgcgiminatauon \ betwieén the“ (Butt of ‘Mextco ‘Shéfiéandjthfl West Florida shalt ‘8;st 'o’n this ‘lsob‘ath, the ‘ * wastFadrldaShawtsfmuch’wldmg-“ 7 'y " ’ b. The’ West Fldrlda Shemth aw go‘dld‘Qlfi-iflrhd by the G'ap‘bélttoh or carbonate skeletons produced ,by’rr‘parthe orggntgmagl'iy‘lng inft'ho wary! coastgt waters.‘ ‘ L n,“ r T c. See” aashid Desoto Cahyari I‘lnb‘thl‘gfifa’FS Nib'te t a 200-fathom ISbbath wOUId’_further acgént'ét‘b the canjé‘h?! Sag‘flootftdpog'r‘liphy ls«31»thViéuallze‘trom : contoured tsob’éthé béoauée ‘they'é‘fimmirl'zé the‘”dtstrtfiutiofi‘bt different water depths. was. , n J t ,. no In ' m Figure 1—5 2. See contoured Figure 1—6 on page 3. a. Figure 1—5 depicts a greater area than, Figure _1-6..-, Figure 1—6 shows more topographic detail because it is scaled to a finer resolution than Figure 1—5. _ b. See completed Figure 1—7 on page 4. Note that there are two corrections for this question... First. in) Figure ‘1-6. the .93”; and, “X”- labels.ior the transecteMere omitted. - but are provided in the‘contoured Figure 1—65b9l9w'. instruct students to add these , , letters as appropriate. Second, in Figure 1—7, the 0 fathom lines ati'the'tqpet the upper graph were omitted. A blank and correct version of Figure 1-7 is provided at the end this section (page 6) and; should be photocopiedtor students. . , z . Vertical exaggeration is calculated ‘bylilnéln‘g the relation for each axlsbetweenlthe map/cross-section unit and the distance this unit. represents, than dividing the“ distance of one horizontallunit by the distance clone .veriicaijunlt.fer-,theupper . graph in Figure 1—7. the vertical exaggeration ..(V.E.) - 160.000/7209- flax-N is c. see the dashed line in Figure 1—6 on page 3. The Newport Submarine Canyon reaches'a depth of ~80 fathoms (~146‘meters) along section line" Y-Z. ” ' ‘ ~ - ‘ 3. See completed Figure 1-8 «page 5. In the text figure. 4.2 cm on the horizontal axis equals 1,000 nautical miles. Converting nautical miles to centimetergiepddlviding by 4.2.,lhe horizontal scale is 1:44.096,238,Q§51.¥‘Forthevertlcai axis’""(0.84lcm a 1‘] , miles), the vertical scale ls 1217351142. “Vertical exaggeratldnnlscalculfited as V 44,095,238,095 '/ 217,857,142“: ~202. " The vertical; exaggeration "Is very “large? so‘th‘at topographycan be observed. At sea, distances are ottenuverylig‘reat relative referrer so vertical scales are often exaggerated tobetter illustrate the topography. __ ~ ’~ ' Ir a a 3 fl 2 2. $3 4. a. Water depth of the canyon is 125 fathoms or 225 meters. b. The one-way travel time for a sound pulse projected to a 3,000 meter canyon-statiiASo meters per second would be 2.07 seconds. 'The question asks for travel tir‘ne ‘ _ ship to the bottom and backto. the ship, thereiOre‘the two-way travel time is 2-it"72.07r . seconds 0r4.14*seconds. ‘ ' r ' r xx w 4': * “uhmTlmhfu I 1 17°50' A B y . III-III..-IIIIII-III..-III-III-===!!--I!IIIIIIIII-IIII-I-II I...III-l.III-l-Il-II-IIII-II.III-II.II-E-IEIII-II-I-Ill-IFI 20‘ III-'- IIIIIIIIIIIIIIIIIII-IIIIIIIIIIIIIDEIII-I-IIII-IE‘I " III-IIIIIIEIIIIIIIlI-I III-IIlI-IIISIIIIV‘I-III I (bums) 0 4 8 12 16 i 20 a 24 ‘ Horizontal distance (kilometers) Horizontal scale 1:160,000 Vertical scale 1: 7200' Vertical exaggeration __22.2_..x ‘ Y Z 220 III u- IIIIIIIIIIIIIIIII “" I 440 ' IIIIIIIIIIIIIIIIII fig 550 IIIIII I I IIII I m 330 IIII , II IIIIIIIII I 880 $23 I I. 1100 v 1540 IIIII I :33 IIIIIIIIIIIIIIIIIIIIIIIII II I I ma mo IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII \ IIIIII1880 2200 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII III 2200 o 4 a 12 V16 , Y 20, 24 Horizontai distance (kilometers) ' Scale 1: 160,000 No vertical exaggoreilon ’ Figure 1-7 mmwag: T‘ ’3, IIIIIIII II-III-I IIIIIHII !" III!!! E I Figure 1-8 Cross sections X A I B . Y Z IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII .IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII 20 50 II IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIEIIIIIIIIIIIIIIIII 150 .I III-I.-I-II-IIIIIII-IIIII-II-I-IIIIII-IHIIIIIII-I-II-III 150 I t . IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII“III-IIIIIIIIIIIIIII 20° IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIEIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIEEIIIIIIIIII IIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIHIIIIIIIIIIII 250 IIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIHIIEIIIIIIIIIIII ===:==:II=IIIIIIIIIIIII 200 I , IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII III IIIIIIIIIIIHIIIIII-IIIIIIIIIIIIIIIIIIIIIII 300 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII III IIIIIIIIIIIIIIIIIIIIIII IIIIIIIIII IIIIIIIIIIIIIIIIIIIIIII I IIIIIIIIIIIIIIIIIIIIIIII IIIIII II IIIIIIIIIIUIII-IIIIIIIIIII III... 300 350 IIIIIIIII IIII III II 400 III-III. IIIIIIIIIIIIIIIIIIIIIIIIIllllllllllIll-IIIIII 400 0 4 a 12 i t 16 r 20 24 Horizontal distance (kilometers) Horizontaiscaie 1:160,000 Vertical scale 1: 7200 1880 IIIIIIII 2200 IIIIIIII Vertical exaggeration _._____X X A B _ Y Z 22 IIIII I II I I 443 IIIII I I I 323 A 680 II... I I 630 am IIIIIIIIIIIII I 830 mo IIIIIIIIIIIII I 1100 {gig '1320 V 1730 IIIIIIII .1323 g 1880 i8 8 o h 0 .a N _I Q N O '0 & Horizontal distance (kilometers) Scale 1: 160,000 No vertical exaggeration ...
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lab1key - Exercise 1. Bathymotry—tho Shape of” the...

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