## ----setup, include = FALSE--------------------------------------------------- knitr::opts_chunk$set( collapse = TRUE, comment = "#>" ) ## ----------------------------------------------------------------------------- suppressPackageStartupMessages(require(TCHazaRds)) # this package :) suppressPackageStartupMessages(require(terra)) # spatial analysis suppressPackageStartupMessages(require(rasterVis)) # enhanced raster visualization https://oscarperpinan.github.io/rastervis/ suppressPackageStartupMessages(require(sp)) # spatial methods and plotting suppressPackageStartupMessages(require(knitr)) # formatted table suppressPackageStartupMessages(require(raster)) # convert for raster plots ## ----------------------------------------------------------------------------- TCi = vect(cbind(c(154,154),c(-26.1,-26)),"lines",crs="epsg:4283") #track line segment TCi$PRES = 950 #central pressure in hPa #TCi$RMW = 40 #radius of maximum winds in km TCi$ISO_TIME = "2022-10-04 20:00:00" #"%Y-%m-%d %H:%M:%S", tz = "UTC" TCi$LON = geom(TCi)[1,3] #longitude TCi$LAT = geom(TCi)[1,4] #latitude TCi$STORM_SPD = perim(TCi)/(3*3600) #speed of the forward motion of the TC m/s TCi$thetaFm = 90-returnBearing(TCi) #direction of the heading of the TC (Cartesian, clockwise from x axis) ## ----------------------------------------------------------------------------- TC <- vect(system.file("extdata/YASI/YASI.shp", package="TCHazaRds")) TC$PRES <- TC$BOM_PRES #different agencies each provide a PRES, you need to chose one. TC$STORM_SPD = TC$STORM_SPD/1.94 #provided as knots, convert to m/s TC$thetaFm = 90-returnBearing(TC) #direction of the heading of the TC (Cartesian, clockwise from x axis) TCi = TC[46] ## ----------------------------------------------------------------------------- paramsTable = read.csv(system.file("extdata/tuningParams/defult_params.csv",package = "TCHazaRds")) knitr::kable(paramsTable,caption = "Parameter file") ## ----out.width = '80%',fig.height=4,fig.width=6, fig.align = "center"--------- r = rast(xmin = 145,xmax=149,ymin = -19,ymax = -16.5,resolution=.01) values(r) = 0 #GEO_land = land_geometry(r,r) # land_v <- vect(system.file("extdata/OSM_500m_QLD/OSM_500m_QLD.shp", package="TCHazaRds")) land_r = rasterize(land_v,r,touches=TRUE,background=0) inland_proximity = terra::costDist(land_r,target = 0,scale=1) GEO_land = land_geometry(land_r,inland_proximity) #plot(inland_proximity,main = "Inland Distance (m)") #plot(TC,add=TRUE) ## ----out.width = '80%',fig.height=4,fig.width=6, fig.align = "center"--------- ats = seq(0, 65, length=14) HAZi = TCHazaRdsWindField(GEO_land = GEO_land,TC = TCi,paramsTable=paramsTable,returnWaves = TRUE) library(raster) # convert for raster plots dummy = raster::raster() TC_sp = list("sp.lines",as(TC,"Spatial"),col="black") sp::spplot(HAZi,"Sw",at=ats,sp.layout = TC_sp,main = "Surface wind speed [m/s]") ats = seq(0, 16, length=9) sp::spplot(HAZi,"Hs0",at=ats,sp.layout = TC_sp,main = "Deep water significant wave height [m]") ## ----out.width = '80%',fig.height=4,fig.width=6, fig.align = "center"--------- ats = seq(0, 65, length=14) if (.Platform$OS.type == "windows"){ UV = as(c(HAZi["Uw"],HAZi["Vw"]),"Raster") #need to convert back to raster rasterVis::vectorplot(UV, isField='dXY', col.arrows='white', aspX=0.002,aspY=0.002,at=ats , colorkey=list(at=ats), par.settings=viridisTheme)+latticeExtra::layer(sp.lines(as(TC,"Spatial"),col="red")) } ## ----out.width = '80%',fig.height=4,fig.width=6, fig.align = "center"--------- HAZ = TCHazaRdsWindFields(GEO_land=GEO_land,TC=TC,paramsTable=paramsTable) sp::spplot(max(HAZ$Sw),at=ats,sp.layout = TC_sp) ## ----out.width = '80%',fig.height=4,fig.width=6, fig.align = "center"--------- outdate = seq(strptime(TC$ISO_TIME[1],"%Y-%m-%d %H:%M:%S",tz="UTC"), strptime(rev(TC$ISO_TIME)[1],"%Y-%m-%d %H:%M:%S",tz="UTC"), 3600) HAZI = TCHazaRdsWindFields(outdate=outdate,GEO_land=GEO_land,TC=TC,paramsTable=paramsTable) sp::spplot(max(HAZI$Sw),at=ats,sp.layout = TC_sp) ## ----out.width = '80%',fig.height=4,fig.width=6, fig.align = "center"--------- outdate = seq(strptime(TC$ISO_TIME[1],"%Y-%m-%d %H:%M:%S",tz="UTC"), strptime(rev(TC$ISO_TIME)[1],"%Y-%m-%d %H:%M:%S",tz="UTC"), 600) GEO_landp = data.frame(dem=0,lons = 147,lats=-18,f=-4e-4,inlandD = 0) HAZts = TCHazaRdsWindTimeSereies(GEO_land=GEO_landp,TC=TC,paramsTable = paramsTable) HAZtsi = TCHazaRdsWindTimeSereies(outdate = outdate,GEO_land=GEO_landp,TC=TC,paramsTable = paramsTable) main = paste(TCi$NAME[1],TCi$SEASON[1],"at",GEO_landp$lons,GEO_landp$lats) if (.Platform$OS.type == "windows"){ suppressWarnings(with(HAZts,plot(date,Sw,format = "%b-%d %HZ",type="l",main = main,ylab = "Wind speed [m/s]"))) with(HAZtsi,lines(date,Sw,col=2)) legend("topleft",c("6 hrly","10 min interpolated"),col = c(1,2),lty=1) } ## ----out.width = '80%',fig.height=4,fig.width=6, fig.align = "center"--------- TCi$thetaFm = 90-returnBearing(TCi) pp <- TCProfilePts(TC_line = TCi,bear=TCi$thetaFm+90,length =150,step=1) #extract the GEO_land GEO_land_v = extract(GEO_land,pp,bind=TRUE,method = "bilinear") HAZp = TCHazaRdsWindProfile(GEO_land_v,TCi,paramsTable) HAZie = extract(HAZi,pp,bind=TRUE)#,method = "bilinear") wcol = colorRampPalette(c("white","lightblue","blue","violet","purple")) #see ?terra::plot plot(HAZi,"Sw",levels=ats,col = wcol(13),range = range(ats),type="continuous",all_levels=TRUE) #plot(HAZp,add=TRUE,cex=1.2) plot(HAZp,"Sw",levels=ats,col = wcol(13),range = range(ats),type="continuous",border="grey")#,all_levels=TRUE) lines(TC) ## ----------------------------------------------------------------------------- TCi$B = 2.2 paramsTableCB = paramsTable paramsTableCB$value[paramsTableCB$param == "betaModel"] = NA HAZpCP = TCHazaRdsWindProfile(GEO_land_v,TCi,paramsTableCB) ## ----------------------------------------------------------------------------- TCi$RMAX2 = 200 paramsTableRMAX2 = paramsTable paramsTableRMAX2$value[paramsTableRMAX2$param == "rMax2Model"] = NA HAZpRMAX2 = TCHazaRdsWindProfile(GEO_land_v,TCi,paramsTableRMAX2) ## ----out.width = '80%',fig.height=4,fig.width=6, fig.align = "center"--------- plot(HAZp$radialdist,HAZp$Sw,type="l",xlab = "Radial distance [km]",ylab = "Wind speed [m/s]",ylim = c(0,70));grid() lines(HAZp$radialdist,HAZpCP$Sw,col=2) lines(HAZpRMAX2$radialdist,HAZpRMAX2$Sw,col=4) legend("topleft",c("B = MK14, RMAX2 = 150 km",paste0("B = ",TCi$B,", RMAX2 = 150 km"),paste0("B = MK14, RMAX2 = ",TCi$RMAX2," km")),lty=1,col = c(1,2,4),cex=.7) title("Profiles of different peakness B and outer radius RMAX2 parameters",cex.main=.9)