coasts GI!
Uploaded by axrielle · 3 June 2024
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coasts-titleeverythingthatundtodrawout>:ocanwritetitlesinpencilLOL scattergraph-pos/negcorrelationofpoints:)piechart-rmbtoputalegend! baysvsheadland,,headlandsrtheonejuttingoutmore(alltherocksnstuff) coasts(GI) measurements beachgradient/profile- identifyalineoftransect- ifthegradientofthebeachis- constant;measureoutspecificdistancesofthebeachandmarkoutintervalsbetweenthedistancesandfirmlyputintherangingpoleupright.namethepointsA,B,Candsoon.- inconsistent;markoutintervalswherethegradientchangesandfirmlyputintherangingpoleupright.namethepointsA,B,Candsoon.- placeameasuringtapealongthelineoftransect- onepersonshouldstandatpointBandanothershouldstandatpointA- thepersonstandingatpointAwillholdtheclinometerateyelevelandshouldaligntheclinometertotheotherperson’shead- personstandingatpointAwillrecorddowntheangleontheclinometerscaleanddistancemeasuredbythemeasuringtape- repeatsteps3to6fortherestoftheintervalsandrecorddownallanglesanddistancesmeasured.- drawoutagraph,withthexaxisasthedistanceofthebeachandyaxisastheverticalheightindegrees.- indicatethegradientfromeachpoint.connectallpointstogetherwithstraightlines:) sediment analysis stratifiedsampling-gettingsamplesofsedimentsthathavecommoncharacteristicswitheachothersystematicsampling-gettingsamplesofsedimentswhichareofaregulardistancesfromeachother(eg:2mawayfromeachsample)randomsampling-gettingsamplesatrandomplaces(reducesbias:D)
1. identifylineoftransect,theonlyconstantbetweenallsamples:)2. gosampling(oneofthe3formsstated)3. sandsamplesshldbecollectedwheretheslopeanglesaremeasured/regularintervalsalongthetransect- sievingtime,collecta100gmsample!!allthesieveshavedifffilters:)- aftersieving,measuretheweightofofsandretainedoneachsieveandcalculatethepercentageofsandsedimentsfromtheoriginalamt(100gm)!!! - quadrating ▦- toidentifysamplesofdifferentparticlesizesfromapebblebeach- 10-15samplesarerandomlypickedfrmwithinthequadrat - measuringdiameterofpebbles- usingverniercaliper/rulertomeasurethelengthofthepebble- makesurezeroerrorfirst - determiningtheroundnessofsediments- class1-class5(increasingroundness) wavecharacteristics+longshoredrift - components:- waveheight=heightofwavecrest(highestpartofwave)-heightofwavetrough(lowestpartofwave) - wavelength=1.56xT²(thewaveperiod) - wavefreq=no.ofwavesinMminutes÷M - wavesteepness=waveheight÷wavelength - waveperiod=timetakenforxwavestopassarangingpole÷x - longshoredrift=observethetravellingpatternsof5smallorangesmovingwiththewaves(shouldbezig-zag) surveys - bi-polar=tocollectdataon(coastal)environments(scalefrmnegtopos)
- cliff=basicallysketchingcliffprofile,measuringcliffheight,observingrsbetwenwavesandcliff(erosion?)
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