Float array in c# - when passed to JS it's in wrong order

Hi, I have the float array which is populated in c#

temperatureData= new float[570, 429];

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I then prepare the data in c# to be send to the front end by doing the following (this might be where its going wrong)

System.Web.Script.Serialization.JavaScriptSerializer jSearializer = new System.Web.Script.Serialization.JavaScriptSerializer();
jSearializer.MaxJsonLength = int.MaxValue;
pd.TemperatureDataArray = jSearializer.Serialize(temperatureData);

ViewBag.TempDataArray = pd.TemperatureDataArray;

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then in the front end i have

var tempDataArray = @(ViewBag.TempDataArray);


var imageTemperatureDataArray = JSON.stringify(tempDataArray);
imageTemperatureDataArray = JSON.parse(imageTemperatureDataArray);


alert(imageTemperatureDataArray[321, 228]);

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However the value in position 321,228 in JS is not the same as in C#, so i assume its re-ordered the data some how


Can anyone advise where its getting muddled up?


I've attached the dataset which is was taken on a BP on this line
ViewBag.TempDataArray = pd.TemperatureDataArray


The correct value in the float array at this position  [321, 228] should be 346.795624
However in the front end i'm seeing 304.92453