Questions tagged [modis]

Questions about data from the Moderate-Resolution Imaging Spectroradiometer sensors aboard the Terra and Aqua satellites.

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2k views

Select pixel values in a raster using R

I'm trying to select some cell values in a raster MODIS. Follow my problem: I have to filter these values to mask after it: 32767,32766,32765,32764,32763,32762,32761 I've used this code to one value:...
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1answer
827 views

Harmonic MODIS trend in Google Earth Engine?

I would like to plot in a histogram the difference between the real SAVI values and the harmonic trend. I use this code and I cannot make it. // Load a collection of Landsat TOA reflectance images. ...
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3answers
226 views

How to use Landsat 8 or MODIS products to classify land area

Anyone know of a good tutorial where I can learn how to use satellite vegetation imagery from Landsat or MODIS to classify which crops are grown where over time for a West african country. I don't ...
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1answer
116 views

How can I use rts function for time series TIFF using R

I am trying to plot a time series for my TIFF stack MODIS EVI with the rts function. I am trying to use this script but I do not know if I can use it for my TIFF stack. path <- system.file("D:/...
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1answer
123 views

Error in .getModisList(x = xx, h = h, v = v, dates = dates, opt = opt, : No available data for the selected dates

I have a problem using ModisDownload from RTS Package on R, i always have the same error using ModisDownload or getMODIS functions : Error in .getModisList(x = xx, h = h, v = v, dates = dates, opt = ...
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1answer
3k views

How do I subset image by vector layer using Erdas Imagine?

I have downloaded MODIS MOD10A2 8 day snow cover image. I need to subset this image. I tried to subset the image in erdas. it says the AOI layer is empty.
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1answer
195 views

What Python libraries can I use to georeference standard MODIS products?

I want to create georeferenced standard Swath MODIS products (for example, MOD02QKM hdf files) using Python. What Python libraries can do this?
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1answer
380 views

Earth Engine ImageCollection filter alternative temoporal bands

As my question in Remove alternate features from ImageCollection was put on hold, I am clarifying the question here. I am using google earth engine for some analysis. I can import MODIS vegetation ...
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1answer
322 views

MODIS LST 8 days data to have 16 days LST? [closed]

can i combinate two parameters with different Temporal Granularity , i mean can i combinate image LST MODIS 8 days with image NDVI modis 16 days??
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1answer
2k views

MODIS MOD13Q1 ndvi calculation

i have downloaded the modis MOD13Q1 from usgs glovis in hdf format. how i will convert it into original ndvi value by multiplying scale factor of 0.0001. I am using ERDAS 9.1 & ENVI 4.7. Can you ...
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1answer
42 views

Getting Automatic MODIS HDF Files 2003-2018 by Shell Script [closed]

#!/bin/bash # This Script is for getting Automatic HDF Files # Product MODIS MYD11A2 Data From web https://e4ftl01.cr.usgs.gov/ # Change Login And Passwords User registred on Earthdata # This ...