//VERSION=3 (auto-converted from 2)vardegToRad=Math.PI/180;functionevaluatePixelOrig(samples){varsample=samples[0];varb03_norm=normalize(sample.B03,0,0.253061520471542);varb04_norm=normalize(sample.B04,0,0.290393577911328);varb05_norm=normalize(sample.B05,0,0.305398915248555);varb06_norm=normalize(sample.B06,0.006637972542253,0.608900395797889);varb07_norm=normalize(sample.B07,0.013972727018939,0.753827384322927);varb8a_norm=normalize(sample.B8A,0.026690138082061,0.782011770669178);varb11_norm=normalize(sample.B11,0.016388074192258,0.493761397883092);varb12_norm=normalize(sample.B12,0,0.493025984460231);varviewZen_norm=normalize(Math.cos(sample.viewZenithMean*degToRad),0.918595400582046,1);varsunZen_norm=normalize(Math.cos(sample.sunZenithAngles*degToRad),0.342022871159208,0.936206429175402);varrelAzim_norm=Math.cos((sample.sunAzimuthAngles-sample.viewAzimuthMean)*degToRad)varn1L=neuron1LAI(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm);varn2L=neuron2LAI(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm);varn3L=neuron3LAI(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm);varn4L=neuron4LAI(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm);varn5L=neuron5LAI(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm);varl2L=layer2LAI(n1L,n2L,n3L,n4L,n5L);varlai=denormalize(l2L,0.000319182538301,14.4675094548151);varn1C=neuron1Cab(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm);varn2C=neuron2Cab(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm);varn3C=neuron3Cab(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm);varn4C=neuron4Cab(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm);varn5C=neuron5Cab(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm);varl2C=layer2Cab(n1C,n2C,n3C,n4C,n5C);varcab=denormalize(l2C,0.007426692959872,873.908222110306);varccc=lai*cab;return{default:[ccc/900]}}functionneuron1LAI(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm){varsum=+4.96238030555279-0.023406878966470*b03_norm+0.921655164636366*b04_norm+0.135576544080099*b05_norm-1.938331472397950*b06_norm-3.342495816122680*b07_norm+0.902277648009576*b8a_norm+0.205363538258614*b11_norm-0.040607844721716*b12_norm-0.083196409727092*viewZen_norm+0.260029270773809*sunZen_norm+0.284761567218845*relAzim_norm;returntansig(sum);}functionneuron2LAI(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm){varsum=+1.416008443981500-0.132555480856684*b03_norm-0.139574837333540*b04_norm-1.014606016898920*b05_norm-1.330890038649270*b06_norm+0.031730624503341*b07_norm-1.433583541317050*b8a_norm-0.959637898574699*b11_norm+1.133115706551000*b12_norm+0.216603876541632*viewZen_norm+0.410652303762839*sunZen_norm+0.064760155543506*relAzim_norm;returntansig(sum);}functionneuron3LAI(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm){varsum=+1.075897047213310+0.086015977724868*b03_norm+0.616648776881434*b04_norm+0.678003876446556*b05_norm+0.141102398644968*b06_norm-0.096682206883546*b07_norm-1.128832638862200*b8a_norm+0.302189102741375*b11_norm+0.434494937299725*b12_norm-0.021903699490589*viewZen_norm-0.228492476802263*sunZen_norm-0.039460537589826*relAzim_norm;returntansig(sum);}functionneuron4LAI(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm){varsum=+1.533988264655420-0.109366593670404*b03_norm-0.071046262972729*b04_norm+0.064582411478320*b05_norm+2.906325236823160*b06_norm-0.673873108979163*b07_norm-3.838051868280840*b8a_norm+1.695979344531530*b11_norm+0.046950296081713*b12_norm-0.049709652688365*viewZen_norm+0.021829545430994*sunZen_norm+0.057483827104091*relAzim_norm;returntansig(sum);}functionneuron5LAI(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm){varsum=+3.024115930757230-0.089939416159969*b03_norm+0.175395483106147*b04_norm-0.081847329172620*b05_norm+2.219895367487790*b06_norm+1.713873975136850*b07_norm+0.713069186099534*b8a_norm+0.138970813499201*b11_norm-0.060771761518025*b12_norm+0.124263341255473*viewZen_norm+0.210086140404351*sunZen_norm-0.183878138700341*relAzim_norm;returntansig(sum);}functionlayer2LAI(neuron1,neuron2,neuron3,neuron4,neuron5){varsum=+1.096963107077220-1.500135489728730*neuron1-0.096283269121503*neuron2-0.194935930577094*neuron3-0.352305895755591*neuron4+0.075107415847473*neuron5;returnsum;}functionneuron1Cab(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm){varsum=4.242299670155190+0.400396555256580*b03_norm+0.607936279259404*b04_norm+0.137468650780226*b05_norm-2.955866573461640*b06_norm-3.186746687729570*b07_norm+2.206800751246430*b8a_norm-0.313784336139636*b11_norm+0.256063547510639*b12_norm-0.071613219805105*viewZen_norm+0.510113504210111*sunZen_norm+0.142813982138661*relAzim_norm;returntansig(sum);}functionneuron2Cab(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm){varsum=-0.259569088225796-0.250781102414872*b03_norm+0.439086302920381*b04_norm-1.160590937522300*b05_norm-1.861935250269610*b06_norm+0.981359868451638*b07_norm+1.634230834254840*b8a_norm-0.872527934645577*b11_norm+0.448240475035072*b12_norm+0.037078083501217*viewZen_norm+0.030044189670404*sunZen_norm+0.005956686619403*relAzim_norm;returntansig(sum);}functionneuron3Cab(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm){varsum=+3.130392627338360+0.552080132568747*b03_norm-0.502919673166901*b04_norm+6.105041924966230*b05_norm-1.294386119140800*b06_norm-1.059956388352800*b07_norm-1.394092902418820*b8a_norm+0.324752732710706*b11_norm-1.758871822827680*b12_norm-0.036663679860328*viewZen_norm-0.183105291400739*sunZen_norm-0.038145312117381*relAzim_norm;returntansig(sum);}functionneuron4Cab(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm){varsum=+0.774423577181620+0.211591184882422*b03_norm-0.248788896074327*b04_norm+0.887151598039092*b05_norm+1.143675895571410*b06_norm-0.753968830338323*b07_norm-1.185456953076760*b8a_norm+0.541897860471577*b11_norm-0.252685834607768*b12_norm-0.023414901078143*viewZen_norm-0.046022503549557*sunZen_norm-0.006570284080657*relAzim_norm;returntansig(sum);}functionneuron5Cab(b03_norm,b04_norm,b05_norm,b06_norm,b07_norm,b8a_norm,b11_norm,b12_norm,viewZen_norm,sunZen_norm,relAzim_norm){varsum=+2.584276648534610+0.254790234231378*b03_norm-0.724968611431065*b04_norm+0.731872806026834*b05_norm+2.303453821021270*b06_norm-0.849907966921912*b07_norm-6.425315500537270*b8a_norm+2.238844558459030*b11_norm-0.199937574297990*b12_norm+0.097303331714567*viewZen_norm+0.334528254938326*sunZen_norm+0.113075306591838*relAzim_norm;returntansig(sum);}functionlayer2Cab(neuron1,neuron2,neuron3,neuron4,neuron5){varsum=+0.463426463933822-0.352760040599190*neuron1-0.603407399151276*neuron2+0.135099379384275*neuron3-1.735673123851930*neuron4-0.147546813318256*neuron5;returnsum;}functionnormalize(unnormalized,min,max){return2*(unnormalized-min)/(max-min)-1;}functiondenormalize(normalized,min,max){return0.5*(normalized+1)*(max-min)+min;}functiontansig(input){return2/(1+Math.exp(-2*input))-1;}functionsetup(){return{input:[{bands:["B03","B04","B05","B06","B07","B8A","B11","B12","viewZenithMean","viewAzimuthMean","sunZenithAngles","sunAzimuthAngles"]}],output:[{id:"default",sampleType:"AUTO",bands:1}]}}functionevaluatePixel(sample,scene,metadata,customData,outputMetadata){constresult=evaluatePixelOrig([sample],[scene],metadata,customData,outputMetadata);returnresult[Object.keys(result)[0]];}
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General description of the script
CCC (Canopy Chlorophyll Content (μg / cm ^ 2)) is calculated here as the product of the leaf area index (LAI) with the leaf cholrophyll content (Cab). Note that the LAI and Cab scripts are as implemented in SNAP but without input and output validation! Input/output values which are suspect are not reported or changed. Most values, however, do not fall under this category. Visualized as an interval from 0-900. This can be adjusted in the evaluatePixel method.
Description of representative images
Canopy chlorophyll index, Rome. Acquired on 8.10.2017.