Negative value of ndwi

Apps / Services
1

Good morning,

I calculated the value of index of ndwi and the result is negative.
The value should be positive. (not all of date for example date 31/08/2022). I want to know if it is normal.
I attached the python code and result of index.
Geometry: [-5.7580946, 37.3905082], [-5.7579981, 37.3903292], [-5.7585989, 37.3902355], [-5.7585453, 37.3893489], [-5.7583629, 37.3886755],[-5.7573811, 37.3887778], [-5.7565442, 37.3910112], [-5.7580946, 37.3905082]

evalscript = “”"
//VERSION=3
function setup() {
return {
input: [{
bands: [“Green”, “NIR”],
units: “DN”
}],
output: {
id: “default”,
bands: 1,
sampleType: SampleType.FLOAT32
}
};
}

    function evaluatePixel(sample) {
        var ndwi = (sample.Green - sample.NIR)/(sample.Green + sample.NIR);
        return [ndwi];
    }
    """

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.1228115
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.13425693,-0.12727273,-0.12719022,-0.12719022
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.12897949,-0.1404938,-0.1411676,-0.13648394,-0.1261794,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.13485424,-0.12882814,-0.12777779,-0.12777779,-0.136919,-0.13133375,-0.1309433,-0.13236034,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.14180805,-0.13661203,-0.13485424,-0.12978454,-0.12851,-0.12851,-0.12771876,-0.115586914,-0.124428645,-0.13091782,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.12980402,-0.14051463,-0.13272773,-0.13272773,-0.12602913,-0.13075459,-0.12978454,-0.12851,-0.12851,-0.12771876,-0.115586914,-0.124428645,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.12716176,-0.1275783,-0.13209939,-0.1406171,-0.13202283,-0.13202283,-0.123350255,-0.12501584,-0.1311703,-0.13069908,-0.13069908,-0.12631981,-0.11754161,-0.12658228,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.12364701,-0.13160206,-0.13160206,-0.13152559,-0.12815286,-0.13042372,-0.13386627,-0.13386627,-0.12661761,-0.12301086,-0.12981312,-0.12295809,-0.12295809,-0.1231277,-0.124825396,-0.13086358,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.13066399,-0.13046739,-0.12917933,-0.12364701,-0.12542288,-0.12542288,-0.122851685,-0.11883984,-0.124108054,-0.13709678,-0.13709678,-0.14054601,-0.12922567,-0.12515932,-0.12869786,-0.12869786,-0.1274102,-0.12998486,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.13601823,-0.13301241,-0.13301241,-0.12748803,-0.14026694,-0.1339196,-0.12542288,-0.12542288,-0.122851685,-0.11883984,-0.124108054,-0.13709678,-0.13709678,-0.14054601,-0.12922567,-0.13063349,-0.13063349,-0.14077242,-0.13387807,-0.13022609,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.12147145,-0.12708306,-0.12746586,-0.13393985,-0.13810189,-0.13810189,-0.13745399,-0.1489095,-0.12678188,-0.12678188,-0.11637877,-0.11857958,-0.11657864,-0.12566507,-0.12566507,-0.13229766,-0.12827025,-0.12949823,-0.13063349,-0.13063349,-0.14077242,-0.13387807,-0.13022609,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.12585638,-0.12585638,-0.1244929,-0.12702839,-0.12736028,-0.12926368,-0.12926368,-0.14379002,-0.13811454,-0.1257485,-0.12294978,-0.12294978,-0.1225774,-0.1243706,-0.12419479,-0.13057768,-0.13057768,-0.12980166,-0.12379747,-0.13394083,-0.13222209,-0.13222209,-0.1286328,-0.12822458,-0.12682493,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.13486388,-0.13810357,-0.1350809,-0.12585638,-0.12585638,-0.1244929,-0.12816615,-0.12887189,-0.12440621,-0.12440621,-0.115384616,-0.1254462,-0.12245681,-0.12947167,-0.12947167,-0.14174415,-0.13525108,-0.1229728,-0.12400455,-0.12400455,-0.13070826,-0.12823753,-0.12764609,-0.13295527,-0.13295527,-0.12899558,-0.12571356,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.12168367,-0.12168367,-0.1175189,-0.12514439,-0.13326603,-0.13416009,-0.13416009,-0.12826334,-0.12816615,-0.12887189,-0.12440621,-0.12440621,-0.115384616,-0.1254462,-0.12245681,-0.12947167,-0.12218238,-0.13776214,-0.13613956,-0.12580931,-0.120809615,-0.120809615,-0.13617398,-0.13285823,-0.12463399,-0.13097921,-0.13097921,-0.12889786,-0.12590522,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.12577581,-0.12412831,-0.117901705,-0.11605192,-0.11605192,-0.12488815,-0.14010026,-0.13661477,-0.13602205,-0.13602205,-0.13209923,-0.1279645,-0.13168254,-0.13133113,-0.13133113,-0.11962211,-0.12853698,-0.12898292,-0.12218238,-0.12218238,-0.13776214,-0.13613956,-0.12580931,-0.120809615,-0.120809615,-0.13617398,-0.13285823,-0.12463399,-0.12957887,-0.12957887,-0.12966476,-0.12576374,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.13326578,-0.13326578,-0.12487361,-0.119170986,-0.11977574,-0.12048961,-0.12048961,-0.1256941,-0.13792247,-0.13671236,-0.13447495,-0.13447495,-0.13153924,-0.12536223,-0.12365795,-0.13230847,-0.13230847,-0.13443367,-0.12075089,-0.1249046,-0.12896675,-0.12896675,-0.13590162,-0.13744794,-0.1364783,-0.13061018,-0.13061018,-0.12597121,-0.12266803,-0.123638205,-0.12957887,-0.12957887,-0.12966476,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.12384097,-0.12209376,-0.124667086,-0.13326578,-0.13326578,-0.12487361,-0.119170986,-0.12394188,-0.12915036,-0.12915036,-0.12142676,-0.12967363,-0.14331923,-0.1365957,-0.1365957,-0.13123752,-0.123071134,-0.113866396,-0.12054415,-0.12054415,-0.12561297,-0.12438563,-0.12978831,-0.12908125,-0.12908125,-0.13006182,-0.13386814,-0.14182182,-0.12853698,-0.12853698,-0.1121435,-0.11948882,-0.12810804,-0.13625577,-0.13625577,-0.13730408,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.14069973,-0.14069973,-0.12778905,-0.11814024,-0.124303795,-0.1372796,-0.1372796,-0.122593716,-0.11929159,-0.12394188,-0.12915036,-0.12915036,-0.12142676,-0.12967363,-0.14331923,-0.1365957,-0.1365957,-0.13123752,-0.120111026,-0.11689962,-0.12283365,-0.12283365,-0.12936138,-0.13103448,-0.12992372,-0.120162934,-0.120162934,-0.11436649,-0.1189686,-0.13566959,-0.12816615,-0.12816615,-0.115884244,-0.12804179,-0.13766102,-0.1448534,-0.1448534,-0.14139523,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.10887772,-0.13603401,-0.13369524,-0.13226707,-0.13226707,-0.12720355,-0.116214156,-0.12814039,-0.13670695,-0.13670695,-0.116273165,-0.12033511,-0.12868531,-0.1348414,-0.1348414,-0.12112676,-0.1311414,-0.1392,-0.12589252,-0.12589252,-0.11941429,-0.120111026,-0.11689962,-0.12283365,-0.12283365,-0.12936138,-0.13103448,-0.12992372,-0.120162934,-0.11862261,-0.120245084,-0.12399643,-0.13324969,-0.13989508,-0.13989508,-0.13796122,-0.13234556,-0.12895499,-0.12895499,-0.14150119,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.12182676,-0.12182676,-0.12293205,-0.1267499,-0.13501202,-0.13091001,-0.13091001,-0.12612498,-0.11892713,-0.13293776,-0.13056642,-0.13056642,-0.11576011,-0.12668876,-0.13020168,-0.13449106,-0.13449106,-0.1342013,-0.13763306,-0.13461539,-0.117818646,-0.117818646,-0.10119048,-0.12282471,-0.13142145,-0.13142145,-0.12138436,-0.12624292,-0.12933517,-0.12604414,-0.12604414,-0.11862261,-0.120245084,-0.12399643,-0.13324969,-0.13324969,-0.13989508,-0.13796122,-0.13234556,-0.12895499,-0.121196754,-0.13393757,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.13383648,-0.12520573,-0.11641563,-0.12182676,-0.12182676,-0.12293205,-0.1267499,-0.13501202,-0.13316455,-0.13316455,-0.1228604,-0.11805643,-0.13126189,-0.12574245,-0.12574245,-0.12166097,-0.13476986,-0.12841356,-0.12841356,-0.13318227,-0.14064452,-0.13879725,-0.13392405,-0.13392405,-0.12618177,-0.116155885,-0.13496016,-0.13549027,-0.13549027,-0.120150656,-0.115606934,-0.120517045,-0.12942658,-0.12942658,-0.1328252,-0.12672141,-0.13014828,-0.13297872,-0.13297872,-0.13512146,-0.13409092,-0.12808193,-0.121196754,-0.121196754,-0.13393757,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.13567339,-0.13567339,-0.12852113,-0.12503164,-0.12771328,-0.13009562,-0.13009562,-0.12205076,-0.122305825,-0.13980387,-0.13980387,-0.13316455,-0.1228604,-0.11805643,-0.13126189,-0.13126189,-0.12574245,-0.12166097,-0.13476986,-0.13385224,-0.13385224,-0.14041483,-0.14131391,-0.13520376,-0.1265759,-0.1265759,-0.12586619,-0.12703992,-0.13475883,-0.1329279,-0.1329279,-0.12514037,-0.11644962,-0.12248258,-0.12922767,-0.12922767,-0.1352633,-0.123111784,-0.122882426,-0.12566371,-0.12566371,-0.1273555,-0.12871288,-0.12619625,-0.12437684,-0.12437684,-0.1290118,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.11343321,-0.12656017,-0.12656017,-0.13423981,-0.12562814,-0.13000757,-0.13215637,-0.13215637,-0.1282957,-0.1273051,-0.12741117,-0.1378321,-0.1378321,-0.13355131,-0.12710257,-0.12341612,-0.12830284,-0.12830284,-0.12518968,-0.12724969,-0.13461784,-0.13385224,-0.13385224,-0.14041483,-0.14131391,-0.13520376,-0.1265759,-0.1265759,-0.12586619,-0.12703992,-0.12552926,-0.12159939,-0.12159939,-0.13171707,-0.12853213,-0.11792274,-0.11944091,-0.11944091,-0.12719022,-0.13587025,-0.12898752,-0.12120445,-0.12120445,-0.12074851,-0.1266464,-0.12877826,-0.13061173,-0.13061173,0,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.11737326,-0.11986905,-0.1201311,-0.12908436,-0.12908436,-0.13514851,-0.11923567,-0.12683544,-0.12892604,-0.12892604,-0.12729576,-0.13968293,-0.13089268,-0.12747805,-0.12747805,-0.13281447,-0.13223767,-0.12894636,-0.12628245,-0.12628245,-0.12354725,-0.12511069,-0.1308554,-0.13756546,-0.13756546,-0.14500564,-0.13535912,-0.12336757,-0.12186471,-0.12186471,-0.12915407,-0.12979203,-0.12552926,-0.12159939,-0.12159939,-0.13171707,-0.12853213,-0.11792274,-0.11944091,-0.11944091,-0.13017231,-0.13579938,-0.13330801,-0.11955279,-0.11955279,-0.11870001,-0.12852982,-0.13667426,-0.13274336,-0.13274336,0,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.11737326,-0.11986905,-0.1201311,-0.12908436,-0.12908436,-0.13514851,-0.12123905,-0.12461929,-0.12395225,-0.12395225,-0.124017246,-0.12620872,-0.12784413,-0.12542629,-0.12542629,-0.12768647,-0.13067749,-0.1323249,-0.130014,-0.130014,-0.12585813,-0.12275827,-0.12643969,-0.13108519,-0.13108519,-0.13134104,-0.12407831,-0.12465163,-0.12866306,-0.12866306,-0.12970607,-0.1275402,-0.12112887,-0.11777302,-0.11777302,-0.13002247,-0.12835896,-0.1110828,-0.12414492,-0.12414492,-0.13017231,-0.13579938,-0.13330801,-0.11955279,-0.11955279,-0.11870001,-0.12852982,-0.13667426,-0.13274336,-0.12974404,0,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.12733233,-0.13293925,-0.11540893,-0.11540893,-0.11789182,-0.12123905,-0.12461929,-0.12395225,-0.12395225,-0.124017246,-0.12620872,-0.12784413,-0.12542629,-0.123392336,-0.113904566,-0.10899743,-0.12187021,-0.12796329,-0.12796329,-0.12767039,-0.12307692,-0.12328767,-0.1273781,-0.1273781,-0.13102752,-0.12947449,-0.13469285,-0.13662972,-0.13662972,-0.12206809,-0.12451117,-0.11989892,-0.117913835,-0.117913835,-0.12520365,-0.12696615,-0.1272406,-0.12897527,-0.12897527,-0.1280434,-0.13256666,-0.13508704,-0.1249046,-0.1249046,-0.12447659,-0.13021427,-0.13742393,-0.12974404,0,0,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.119588405,-0.1219697,-0.11576011,-0.11576011,-0.12257574,-0.12741996,-0.123123884,-0.11237805,-0.11237805,-0.115116134,-0.121227495,-0.12688172,-0.123392336,-0.123392336,-0.113904566,-0.10899743,-0.12187021,-0.12796329,-0.12796329,-0.12767039,-0.12307692,-0.12328767,-0.13098556,-0.13098556,-0.1361799,-0.140309,-0.13282248,-0.13367218,-0.13367218,-0.13170855,-0.12981744,-0.12461774,-0.128548,-0.128548,-0.14532445,-0.12904444,-0.12423935,-0.12588653,-0.12588653,-0.12620375,-0.1290608,-0.12963197,-0.12539622,-0.12539622,-0.12656784,-0.12908559,-0.1322293,-0.132582,0,0,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.12764609,-0.12634647,-0.1245723,-0.1245723,-0.13087805,-0.12897907,-0.12253664,-0.115127005,-0.115127005,-0.116936,-0.12052034,-0.12294978,-0.12377809,-0.12377809,-0.12106599,-0.11769945,-0.12205677,-0.12493665,-0.12493665,-0.12937903,-0.13057768,-0.1295639,-0.13098556,-0.13098556,-0.1361799,-0.140309,-0.13282248,-0.13367218,-0.13367218,-0.13170855,-0.12981744,-0.13827097,-0.1316222,-0.1316222,-0.13405162,-0.1340698,-0.11895058,-0.12108081,-0.12108081,-0.1284392,-0.12954545,-0.12954545,-0.12954545,-0.12824409,-0.12793204,-0.12749968,-0.12984695,-0.12984695,0,0,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.12767845,-0.12617415,-0.12617415,-0.12727736,-0.12640485,-0.12591287,-0.12428878,-0.12428878,-0.12291428,-0.12115042,-0.12411348,-0.13044573,-0.13044573,-0.13222209,-0.13250282,-0.1287304,-0.12209889,-0.12209889,-0.12557077,-0.12929499,-0.1303239,-0.13288489,-0.13288489,-0.13776992,-0.13893783,-0.13180262,-0.13180262,-0.13089803,-0.13394773,-0.13363706,-0.13827097,-0.13827097,-0.1316222,-0.13405162,-0.1340698,-0.11895058,-0.11895058,-0.12108081,-0.13124363,-0.13435872,-0.13217084,-0.13217084,-0.13098556,-0.12963904,-0.12657103,-0.12742488,0,0,0,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.12767845,-0.12617415,-0.12617415,-0.12727736,-0.12257081,-0.124841414,-0.1297613,-0.1297613,-0.12960367,-0.1249046,-0.123176455,-0.12853536,-0.12853536,-0.13533175,-0.14203045,-0.13979037,-0.13979037,-0.12868531,-0.12189501,-0.12719354,-0.12917197,-0.12917197,-0.130182,-0.140694,-0.1375801,-0.12714949,-0.12714949,-0.12613982,-0.12710257,-0.12902005,-0.13042381,-0.13042381,-0.12626775,-0.13223244,-0.1425362,-0.11389173,-0.11389173,-0.1182493,-0.13124363,-0.13435872,-0.13217084,-0.13217084,-0.13098556,-0.12963904,-0.12657103,-0.12742488,0,0,0,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.12191436,-0.12191436,-0.12193271,-0.12257081,-0.124841414,-0.124841414,-0.1297613,-0.12960367,-0.1249046,-0.123176455,-0.123176455,-0.120398775,-0.1251441,-0.12924998,-0.1327523,-0.1327523,-0.12598225,-0.11394689,-0.13273427,-0.13815957,-0.13815957,-0.13331647,-0.13713638,-0.1344897,-0.12581617,-0.12581617,-0.12925343,-0.13022488,-0.12899558,-0.12701613,-0.12701613,-0.12750317,-0.1350669,-0.13489662,-0.11664114,-0.11664114,-0.12651603,-0.13322264,-0.13507988,-0.13007206,-0.13007206,-0.1285171,-0.13088739,-0.13402322,-0.12933753,0,0,0,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.119787045,-0.12147643,-0.12132725,-0.119517826,-0.11048085,-0.11048085,-0.116404146,-0.12738854,-0.13083397,-0.12231132,-0.12231132,-0.120398775,-0.1251441,-0.12924998,-0.1327523,-0.1327523,-0.12598225,-0.11394689,-0.13273427,-0.13815957,-0.14042011,-0.13446443,-0.1290039,-0.13806681,-0.13249332,-0.13249332,-0.12409501,-0.1270606,-0.12773769,-0.12788789,-0.12788789,-0.12871288,-0.13060033,-0.13130546,-0.1274622,-0.1274622,-0.1335538,-0.1286096,-0.12046963,-0.11921459,-0.11921459,-0.13991201,-0.14023162,-0.1395466,-0.13331647,0,0,0,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.11139663,-0.11027699,-0.11984635,-0.12431746,-0.12276247,-0.12276247,-0.12137405,-0.12468322,-0.1263118,-0.12328419,-0.12328419,-0.12733275,-0.12997077,-0.13316326,-0.12751678,-0.12751678,-0.1280224,-0.12855314,-0.12579739,-0.12588473,-0.12588473,-0.11742328,-0.10743165,-0.13343519,-0.14042011,-0.14042011,-0.13446443,-0.1290039,-0.13806681,-0.13249332,-0.13249332,-0.12409501,-0.1270606,-0.12773769,-0.12871788,-0.12871788,-0.12964596,-0.12596925,-0.13176918,-0.13547733,-0.13547733,-0.13506658,-0.12859496,-0.12122371,-0.12215691,-0.12215691,-0.14597715,-0.14235546,-0.13397372,0,0,0,0,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,0,-0.13319929,-0.1269163,-0.12284239,-0.1163678,-0.12487386,-0.12487386,-0.13451616,-0.11735283,-0.12261025,-0.12360406,-0.12360406,-0.11713777,-0.12266903,-0.12917455,-0.13120121,-0.13120121,-0.13000506,-0.12705643,-0.11986822,-0.12036451,-0.12036451,-0.12772982,-0.12902816,-0.12592404,-0.122565866,-0.122565866,-0.12738368,-0.12724493,-0.13440792,-0.13921468,-0.13921468,-0.13167891,-0.123225726,-0.13009265,-0.12909783,-0.12909783,-0.12336757,-0.12332236,-0.12434638,-0.12871788,-0.12871788,-0.12964596,-0.12596925,-0.13176918,-0.13547733,-0.13547733,-0.13506658,-0.13704033,-0.12930375,-0.125,-0.125,-0.13078985,-0.14698915,-0.13860887,0,0,0,0,0,0,0,0,0,0
0,0,0,0,0,0,0,-0.11515307,-0.11758717,-0.12333629,-0.1225035,-0.12738773,-0.12738773,-0.12698413,-0.12160626,-0.11542364,-0.12487386,-0.12487386,-0.13451616,-0.11735283,-0.12261025,-0.12360406,-0.12360406,-0.11713777,-0.12266903,-0.12769988,-0.12619889,-0.12619889,-0.11261664,-0.12724969,-0.12724969,-0.122664295,-0.122664295,-0.12756784,-0.12563452,-0.12152157,-0.121682264,-0.121682264,-0.13885382,-0.13797036,-0.13267125,-0.13469388,-0.13469388,-0.12821813,-0.12331188,-0.12588653,-0.13004826,-0.13004826,-0.12639594,-0.12137405,-0.119948685,-0.13608117,-0.13608117,-0.13432837,-0.12423469,-0.13239579,-0.13650152,-0.13650152,-0.13840699,-0.13704033,-0.12930375,-0.125,-0.125,-0.13078985,-0.14698915,-0.13860887,0,0,0,0,0,0,0,0,0,0
0,0,-0.10758923,-0.11780404,-0.12253664,-0.114682995,-0.11814454,-0.11814454,-0.11211224,-0.11516854,-0.12852113,-0.12638411,-0.12638411,-0.12785797,-0.12511274,-0.11972104,-0.1285171,-0.1285171,-0.13500628,-0.11116823,-0.11537969,-0.12295918,-0.12295918,-0.12308478,-0.12322515,-0.12769988,-0.12619889,-0.12619889,-0.11261664,-0.12724969,-0.12724969,-0.122664295,-0.122664295,-0.12925343,-0.13113087,-0.12761614,-0.12672457,-0.12672457,-0.13919276,-0.13435872,-0.13185829,-0.13310406,-0.13310406,-0.12506355,-0.1244298,-0.12751678,-0.13372388,-0.13372388,-0.12930706,-0.12754393,-0.13036887,-0.14811084,-0.14811084,-0.13719009,-0.12653375,-0.13773966,-0.13873418,-0.13873418,-0.1362481,-0.13705972,-0.13525216,-0.1293488,-0.1293488,-0.1284146,-0.13934945,0,0,0,0,0,0,0,0,0,0,0
-0.11108247,-0.10764068,-0.10764068,-0.11726591,-0.12035398,-0.118058205,-0.12043889,-0.12043889,-0.11390779,-0.122851685,-0.13968016,-0.11872736,-0.11872736,-0.11492014,-0.117700376,-0.118930146,-0.1207581,-0.1207581,-0.12737884,-0.12627292,-0.116344914,-0.122847304,-0.122847304,-0.12528647,-0.12064139,-0.12101098,-0.1301939,-0.1301939,-0.13175379,-0.126613,-0.12867741,-0.12764871,-0.12764871,-0.12925343,-0.13113087,-0.12761614,-0.12672457,-0.12672457,-0.13919276,-0.13435872,-0.13185829,-0.13310406,-0.12452156,-0.12534961,-0.12797052,-0.13242355,-0.13218027,-0.13218027,-0.11769991,-0.124873094,-0.13774104,-0.15077384,-0.15077384,-0.13631791,-0.120214395,-0.12213838,-0.12213838,-0.1357052,-0.13037959,-0.12660317,-0.13409379,-0.13409379,-0.13113087,-0.12685423,-0.12991169,0,0,0,0,0,0,0,0,0,0,0
-0.11108247,-0.10764068,-0.10764068,-0.11726591,-0.12035398,-0.118058205,-0.12043889,-0.12043889,-0.1220819,-0.1323077,-0.13388641,-0.113549374,-0.113549374,-0.10979838,-0.113609925,-0.11629716,-0.11374468,-0.11374468,-0.12796086,-0.1379619,-0.1322293,-0.122664295,-0.122664295,-0.12094922,-0.117253795,-0.11629099,-0.11349258,-0.11349258,-0.122748755,-0.12305915,-0.12754776,-0.12709159,-0.12709159,-0.12641342,-0.12882346,-0.12863491,-0.1274622,-0.1274622,-0.1253489,-0.11651106,-0.117918484,-0.12452156,-0.12452156,-0.12534961,-0.12797052,-0.13242355,-0.13242355,-0.13218027,-0.11769991,-0.124873094,-0.13774104,-0.12990476,-0.13497786,-0.12809445,-0.12161472,-0.11964057,-0.11964057,-0.13481294,-0.13897623,-0.13255756,-0.12892962,-0.12892962,-0.13047898,-0.126739,-0.12467998,0,0,0,0,0,0,0,0,0,0,0
-0.11245809,-0.11050935,-0.11050935,-0.11389813,-0.124699935,-0.12563068,-0.12303399,-0.12303399,-0.1220819,-0.1323077,-0.13388641,-0.113549374,-0.113549374,-0.10979838,-0.113609925,-0.11629716,-0.10834083,-0.10834083,-0.12360129,-0.13096003,-0.1329259,-0.11566018,-0.11566018,-0.116171956,-0.1220819,-0.124602266,-0.11105325,-0.11105325,-0.116441004,-0.13001888,-0.12964824,-0.12964824,-0.12415637,-0.124856815,-0.1267427,-0.1250475,-0.1250475,-0.12748954,-0.13287775,-0.1347196,-0.122878656,-0.122878656,-0.12452156,-0.13067749,-0.12890129,-0.12925687,-0.12925687,-0.12612498,-0.114340834,-0.12319673,-0.12990476,-0.12990476,-0.13497786,-0.12809445,-0.12161472,-0.11964057,-0.11964057,-0.13481294,-0.13897623,-0.12974001,-0.12933113,-0.12933113,-0.12920849,-0.12861696,0,0,0,0,0,0,0,0,0,0,0,0
-0.1255731,-0.12814674,-0.12814674,-0.12343016,-0.1260101,-0.1269741,-0.12561795,-0.12561795,-0.12711972,-0.12880442,-0.12420138,-0.11398504,-0.11398504,-0.11207668,-0.11604492,-0.11421549,-0.10834083,-0.10834083,-0.12360129,-0.13096003,-0.1329259,-0.1329259,-0.11566018,-0.116171956,-0.1220819,-0.12962963,-0.12962963,-0.13360325,-0.12097498,-0.12844619,-0.13397129,-0.13397129,-0.12168906,-0.12823124,-0.13002545,-0.124951944,-0.124951944,-0.13065517,-0.12982723,-0.13653603,-0.13451776,-0.13451776,-0.13197452,-0.1308554,-0.12671755,-0.12546079,-0.12546079,-0.12603122,-0.12795849,-0.13776214,-0.12663755,-0.12663755,-0.12670615,-0.13226299,-0.13653603,-0.13659401,-0.13659401,-0.12904464,-0.118836105,-0.12974001,-0.12933113,-0.12933113,-0.12920849,-0.12861696,0,0,0,0,0,0,0,0,0,0,0,0
-0.1286699,-0.12733275,-0.12733275,-0.12515835,-0.12376363,-0.12705493,-0.12627551,-0.12627551,-0.124061584,-0.1223296,-0.12585813,-0.12585813,-0.12228019,-0.12155758,-0.12413083,-0.11883984,-0.11883984,-0.115679264,-0.123977505,-0.11209248,-0.11335927,-0.11335927,-0.1261468,-0.13369524,-0.12539783,-0.12962963,-0.12962963,-0.13360325,-0.12097498,-0.12844619,-0.13397129,-0.13397129,-0.12168906,-0.13321447,-0.13387631,-0.12857874,-0.12857874,-0.13224293,-0.11843117,-0.11633282,-0.13376117,-0.13376117,-0.124411054,-0.12369026,-0.124633245,-0.12527025,-0.12527025,-0.13082096,-0.13445698,-0.1368927,-0.1306018,-0.1306018,-0.1315079,-0.14003295,-0.1361526,-0.13986537,-0.13986537,-0.12973042,-0.11409396,-0.13422312,-0.1350126,-0.1350126,-0.12613188,-0.12232063,0,0,0,0,0,0,0,0,0,0,0,0
-0.12841564,-0.12841564,-0.124840766,-0.12360122,-0.124618515,-0.12744848,-0.12744848,-0.12476057,-0.1235354,-0.12384567,-0.13550514,-0.13550514,-0.13190731,-0.12426639,-0.12412298,-0.12535103,-0.12535103,-0.1273051,-0.13420352,-0.13535354,-0.12312006,-0.12312006,-0.12533538,-0.1368314,-0.117964536,-0.1213014,-0.1213014,-0.13383229,-0.11643569,-0.12890476,-0.13416952,-0.13416952,-0.12182611,-0.13321447,-0.13387631,-0.12857874,-0.12857874,-0.13224293,-0.11843117,-0.11633282,-0.13376117,-0.13376117,-0.12290076,-0.121758014,-0.12581262,-0.12896675,-0.12896675,-0.12824428,-0.13413553,-0.13798763,-0.14163844,-0.14163844,-0.1309766,-0.12535031,-0.12514207,-0.13010779,-0.13010779,-0.1290566,-0.12609524,-0.1320516,-0.13042375,-0.13042375,-0.12654518,-0.12654518,0,0,0,0,0,0,0,0,0,0,0,0
-0.12841564,-0.12841564,-0.124840766,-0.12360122,-0.124618515,-0.12744848,-0.12744848,-0.12476057,-0.12613419,-0.12692553,-0.12588653,-0.12588653,-0.1261938,-0.12711541,-0.12701434,-0.12976904,-0.12976904,-0.12989165,-0.12881097,-0.13002783,-0.12679274,-0.12679274,-0.12274833,-0.12740913,-0.12982723,-0.12301384,-0.12301384,-0.12368488,-0.11853476,-0.12701844,-0.1320516,-0.1320516,-0.124282986,-0.114935145,-0.12671407,-0.12908559,-0.12908559,-0.13177308,-0.14036834,-0.12946485,-0.12588295,-0.12588295,-0.12290076,-0.121758014,-0.12581262,-0.12896675,-0.12896675,-0.12824428,-0.13413553,-0.13798763,-0.14163844,-0.13907786,-0.13181645,-0.12431327,-0.12274001,-0.12299873,-0.12299873,-0.12272267,-0.12713906,-0.1320371,-0.12957065,-0.12957065,-0.13344274,0,0,0,0,0,0,0,0,0,0,0,0,0
-0.13270505,-0.13270505,-0.12337497,-0.121545546,-0.1251116,-0.12935197,-0.12935197,-0.12538305,-0.12613419,-0.12692553,-0.12588653,-0.12588653,-0.1261938,-0.12711541,-0.12701434,-0.12976904,-0.11987822,-0.119562455,-0.12395225,-0.12698211,-0.1342792,-0.1342792,-0.13382427,-0.13172352,-0.13305269,-0.12927611,-0.12927611,-0.1254782,-0.12507936,-0.1208567,-0.12611921,-0.12611921,-0.12541507,-0.114754096,-0.123176455,-0.12349283,-0.12349283,-0.12115779,-0.12675337,-0.12239949,-0.12336092,-0.12336092,-0.13043478,-0.1264631,-0.12767039,-0.12555654,-0.12555654,-0.11978569,-0.13385233,-0.14020799,-0.13907786,-0.13907786,-0.13181645,-0.12431327,-0.12274001,-0.12299873,-0.12299873,-0.12272267,-0.12713906,-0.1325608,-0.1375822,-0.1375822,-0.14014725,0,0,0,0,0,0,0,0,0,0,0,0,0
-0.13519637,-0.13519637,-0.12506355,-0.12389039,-0.12415465,-0.12733275,-0.12733275,-0.12636943,-0.12045889,-0.11208339,-0.11276842,-0.11276842,-0.12688936,-0.12982546,-0.12892163,-0.11987822,-0.11987822,-0.119562455,-0.12395225,-0.12698211,-0.1342792,-0.1342792,-0.13382427,-0.13172352,-0.13305269,-0.1394847,-0.1394847,-0.1330827,-0.12771569,-0.12383862,-0.124967925,-0.124967925,-0.13102046,-0.13015874,-0.11936066,-0.11921708,-0.11921708,-0.123732254,-0.125,-0.1213335,-0.12543242,-0.12543242,-0.13014743,-0.12938485,-0.13141553,-0.12519123,-0.12519123,-0.11878664,-0.13306753,-0.1398899,-0.13904282,-0.13904282,-0.13255756,-0.12440864,-0.13484003,-0.14339527,-0.14339527,-0.1334002,-0.12541422,-0.1325608,-0.1325608,-0.1375822,-0.14014725,0,0,0,0,0,0,0,0,0,0,0,0,0
-0.11615384,-0.11615384,-0.11984586,-0.12877911,-0.1174668,-0.12077295,-0.12077295,-0.12775442,-0.13185975,-0.1245196,-0.12028818,-0.12028818,-0.1299607,-0.11827405,-0.124615386,-0.1282966,-0.1282966,-0.12417134,-0.12554002,-0.12934314,-0.13058943,-0.13058943,-0.13410449,-0.13291703,-0.13340148,-0.1394847,-0.1394847,-0.1330827,-0.12771569,-0.12383862,-0.124967925,-0.124967925,-0.13102046,-0.13234556,-0.1317849,-0.12707883,-0.12707883,-0.12986523,-0.13415556,-0.12748091,-0.12041751,-0.12041751,-0.12581262,-0.13161914,-0.13386424,-0.13523859,-0.13523859,-0.13808066,-0.1428212,-0.13862514,-0.13862514,-0.1333249,-0.1259952,-0.11694937,-0.13857394,-0.13857394,-0.15039185,-0.1415764,-0.122451596,-0.14058957,-0.14058957,-0.15184543,0,0,0,0,0,0,0,0,0,0,0,0,0,0
0,-0.10757694,-0.12068965,-0.12997822,-0.10657538,-0.12162334,-0.12162334,-0.1341278,-0.14027494,-0.1403997,-0.13271843,-0.13271843,-0.124275595,-0.11901715,-0.12880144,-0.13420245,-0.13420245,-0.13121477,-0.11983524,-0.11643483,-0.11879661,-0.11879661,-0.12467998,-0.12753217,-0.12685044,-0.12496799,-0.12496799,-0.12073591,-0.12271342,-0.12476105,-0.12496799,-0.12496799,-0.12691772,-0.13234556,-0.1317849,-0.12707883,-0.12707883,-0.12986523,-0.13415556,-0.12748091,-0.12748091,-0.12041751,-0.13006885,-0.13013524,-0.12965308,-0.12965308,-0.13487427,-0.13884993,-0.14053367,-0.13387631,-0.13387631,-0.123744115,-0.11136742,-0.10489511,-0.12547918,-0.12547918,-0.14360705,-0.14292835,-0.12530336,-0.13872105,-0.13872105,-0.14013538,0,0,0,0,0,0,0,0,0,0,0,0,0,0
0,-0.10757694,-0.12068965,-0.12997822,-0.10657538,-0.12162334,-0.12162334,-0.1341278,-0.13298349,-0.11898089,-0.1202969,-0.1202969,-0.13105378,-0.13380459,-0.12750478,-0.124823965,-0.124823965,-0.12511274,-0.12957929,-0.1278756,-0.1224202,-0.1224202,-0.1186267,-0.1187916,-0.1182602,-0.1182602,-0.12297818,-0.12523986,-0.122188136,-0.1245688,-0.1245688,-0.12615384,-0.1255123,-0.13363822,-0.13452516,-0.13452516,-0.12948719,-0.123675816,-0.13173804,-0.13823383,-0.13823383,-0.13184173,-0.13006885,-0.13013524,-0.12965308,-0.12965308,-0.13487427,-0.13884993,-0.14053367,-0.13387631,-0.13387631,-0.13603818,-0.12545893,-0.11493957,-0.11794342,-0.11794342,-0.13249052,-0.13859275,-0.13280162,-0.13111843,-0.13111843,-0.13111843,0,0,0,0,0,0,0,0,0,0,0,0,0,0
0,-0.108732104,-0.12479286,-0.12140657,-0.1043999,-0.13179468,-0.13179468,-0.13826285,-0.13298349,-0.11898089,-0.1202969,-0.1202969,-0.13105378,-0.13380459,-0.12750478,-0.12750478,-0.13148125,-0.13947268,-0.14143223,-0.13819063,-0.13819063,-0.13950258,-0.14088224,-0.13824011,-0.1189893,-0.1189893,-0.12853307,-0.13627154,-0.12600537,-0.12791142,-0.12791142,-0.12881874,-0.12640737,-0.1267207,-0.124051936,-0.124051936,-0.12008228,-0.12848733,-0.13740844,-0.1376839,-0.1376839,-0.13667974,-0.13453713,-0.12149533,-0.115207374,-0.115207374,-0.12302598,-0.13006778,-0.13268033,-0.13430583,-0.13430583,-0.13603818,-0.12545893,-0.11493957,-0.11794342,-0.11794342,-0.13249052,-0.13859275,-0.13280162,-0.12810075,-0.12810075,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
0,-0.120426826,-0.12560141,-0.11992809,-0.11908141,-0.11908141,-0.14181544,-0.13507378,-0.12952188,-0.11917494,-0.11917494,-0.11096758,-0.1328689,-0.1396493,-0.11931818,-0.11931818,-0.13148125,-0.13947268,-0.14143223,-0.13819063,-0.13819063,-0.13950258,-0.14088224,-0.13824011,-0.1189893,-0.122158,-0.13329929,-0.13352814,-0.12228747,-0.1281986,-0.1281986,-0.1281337,-0.12311398,-0.11385949,-0.1300629,-0.1300629,-0.1278614,-0.12627551,-0.13664518,-0.12215004,-0.12215004

2

Hi @antonio.santos.rodri ,

NDWI can vary between -1 to +1 in general, depending on the plant water content, the vegetation type, and land cover. The negative value indicates that the area is under water stress.

Here is a documentation from European Commission which briefly summarise NDWI and the interpretation of values. You could also find more information about NDWI online.

3

This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.