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

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0answers
5 views

Download Modis LAI/FPAR product with MODIStools R package

I want to download the full MODIS archive for the LAI product using the MODIStools R package. I am running the command lines below but the output file only contains data from 2014 onwards. Any idea ...
1
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0answers
6 views

ArcMap MODIS NDVI for district in India? [on hold]

I am working on 159 HDF files for the India subcontinent. I am trying to get min, max, standard deviation from the different districts of India using shapefiles. How do I make all the HDF files to ...
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1answer
16 views

How to remove cloudy pixel from MODIS NDVI (MOD13Q1)

I am using MODIS NDVI product (MOD13Q1) for the vegetation changes study. I want to remove cloudy or bad pixel from MODIS NDVI data. I am not getting any suitable method or software or any program to ...
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1answer
265 views

Extraction of pixels from layerstacked NDVI image [closed]

How do I get rice pixels only from layerstack NDVI (modis) or SASI image? I also have a thematic rice image Please tell me how to do in erdas.
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1answer
674 views

Format MODIS HDF to Geotiff in MRT

Am using Modis Reprojection Tool (ModisTool) on MODIS LST data (MOD11A1) to convert to GeoTiff format. When I run it I get this error message: Error: OpenGeoTIFFFILE: Opening Output Image File ...
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1answer
31 views

Process MODIS bands on QGIS

I would precess MODIS images on QGIS (in particular swath images MOD09A1). I use MODIS Reprojected Tool Swath to trasform .hdf file in GEOtiff but there are different avaible bands (16) and i don't ...
2
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1answer
276 views

applying savitzky golay filter to modis ndvi data

I want to smooth the ndvi MODIS 16 bit integer data .tif for LULC classification . i have timesat 3.1 software on windows but i don't how to apply the SG filter . i am not that good in programming . i ...
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1answer
192 views

Failure in TIMESAT integral calculation

in short: My TIMESAT image-output of the seasonal parameter “Large Seasonal Integral” is wrong. TIMESAT continues to write a file with negative values (as 16 byte Integer) although Parameters should ...
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3answers
78 views

Building python script to compute monthly average from 8 days MODIS data

Goal- Building python script to compute monthly average from 8 days MODIS data I have MODIS data which is contain 8 days product. Some of month has 3 images and some of month has four imgaes. So how ...
1
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1answer
378 views

split multi-band raster to separate rasters in ERDAS IMAGINE

I am currently using ERDAS IMAGINE 2013. I have a 28 Band MODIS image. Is there any way in IMAGINE I could split the 28 bands of the MODIS image into single band images?
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1answer
183 views

Spectral Signature Extraction using landsat 7 and MODIS

I am working on differentiating cocoa plants from other vegetation types using 4 epoch bwt 1980-2010. I need to extract the spectral signature for cocoa plants and other known features. I plan using ...
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1answer
26 views

To make HDF format files into tiff files

I have downloaded the MODIS Monthly Fire Location Product from the University of Maryland ftp Server. All the files are in HDF format. How do you make these into tiff's?
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0answers
20 views

MODIS Leaf Area Index data 2001

I am trying to convert MODIS Leaf Area Index data from .hdf to GeoTiff from 2001. I can successfully convert it using R for the more recent datasets using the following code (package gdalUtils): sds &...
1
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1answer
240 views

Maintaining spatial integrity of Matlab matrix with missing data

I am working with MODIS Terra imagery (MOD13Q1). I am currently trying to compute the autocorrelation structure of the pixels in an MODIS NDVI raster. The problem is that I have clipped the original ...
1
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1answer
17 views

how to download World MODIS image from ESRI ImageServer?

I need to download the following dataset that is available online in ESRI website: https://sampleserver3.arcgisonline.com/ArcGIS/rest/services/World/MODIS/ImageServer. I can view the map in arcmap as ...
2
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1answer
298 views

Handling MOD13Q1 NDVI Product Quality Assessment (QA) flags?

I am working on MOD13Q1 NDVI Product and i want to apply Savitzky Golay filter for smoothing Ndvi time series using Quality Assessment(QA) flags. I studied MOD13Q1 NDVI help file and found that ...
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1answer
45 views

How can I export single bands of a MODIS image with QGIS?

How can I export single bands of a MODIS image (in particular MODIS Terra - MOD02HKM) with QGIS? It's .hdf file but with QGIS, I don't know to export these. I also used Modis Reprojection tool but ...
1
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1answer
234 views

Switch an R script from “MODIS Reprojection Tool” to “ModisSwathTool”

This R script works with MRT (MODIS Reprojection Tool), and its performance is unbelievable for land data. The only problem is when you use Atmospheric data from Modis, like "MOD05_L2". The problem ...
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2answers
55 views

hdf files in GDAL throwing an error in R gdalinfo

I am having issues using some modis hdf files in R. Working on Windows 10. I had a previous question where gdal wasn't working but I think I have resolved that. I tested with existing tifs and they ...
1
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1answer
19 views

How to apply Melt Area Detection Index to MODIS imagery?

I am working with some MODIS imagery for a project (I'm relatively new to remote sensing) using MOD09GA, and hoping to apply a melt area detection index (MADI) to images to calculate melt day length ...
0
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1answer
283 views

How to download the MODIS data from R using MODISTools library

I want to download MODIS product MOD13Q1 to use the Scientific Data Sets (SDS) layers of "250m_16_days_EVI", "250m_16_days_pixel_reliability". MODISTools library in R software provides the capability ...
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1answer
446 views

Opening an modis hdf file in Envi and Calibration

I have downloaded an modis hdf file.it is l1 and its name is MOD021KM ..I want to convert it to radiance.so I performed this steps in envi Open>EOS>MODIS selected modis hdf file.then I tried to run ...
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1answer
23 views

How to extract MODIS QA informaton

I want to use the LDOPE tool unpack_sds_bits to extract the bit information from the State QA layer of the MYD09GA Aqua Surface Reflectance product. However, I have never run a command line before ...
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0answers
30 views

What is causing LDOPE error when opening .hdf files?

I get the following error when I try using LDOPE-1.7 on Linux (64 bit) with Modis QA data. The specific dataset resides in the LDOPE-1.7 directory. bash-4.1$ ./unpack_sds_bits -of=ldopeQA.hdf -sds="...
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2answers
524 views

gdalwarp changing value in nodata pixels

I'm using gdalwarp to convert MODIS NDVI mosaics from Sinusoidal to epsg:4326. To save space I'm using VRT files until I reach the final product. Here is my workflow. Mosaic NDVI Modis tiles using ...
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1answer
35 views

Open MOD10A2 snow cover map in ArcGis [closed]

How to open classified MOD10A2 snow cover map in ArcGis? I tried as follows: ArcMap layer>>select Properties>>Symbology>>classified. It says I don't have a valid histogram.
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1answer
218 views

NDVI values for MODIS images [duplicate]

I have downloaded NDVI MODIS 500m image i.e. MOD13A1. From the hdf format that i got i converted them into tif format using the HEG tool. The images that i got some are showing pixel values -32767 to ...
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0answers
11 views

Loop Quality layers of Modis in R

I want to parse quality layers of Modis MOD13Q1 in R. I´m using a code from another question here! and it works fine, but i want to loop it for 300 files. I grouped them in stack of rasters and tried ...
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0answers
23 views

How to convert Integerized Sinusoidal Grid to lat long?

I'm trying to convert MODIS Integerized Sinusoidal Grid (0.25km/250m) to corresponding latitude and longitude. I found this tool to convert the data. I've written the algorithm for converting ...
1
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1answer
61 views

How to tranform MODIS tiles into lat/long?

I'm trying to get the vegetation index nearest to a particular lat/long. I'm getting the data from here which is 250-meter spatial resolution hdf file. The globally gridded projection is split in 36 (...
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1answer
36 views

modis surface reflectance

I wanted to perform atmospheric correction using MODIS surface reflectance products for validating my atmospherically corrected images (from Landsat 8). As Landsat 8 only became available in 2013, is ...
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2answers
39 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 ...
2
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0answers
68 views

VI Quality dataset in MODIS image

While importing NDVI dataset in ArcGIS should we also import the VI_Quality dataset ? If yes then how should we handle it ? and, if not, then for what it is there ?
0
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0answers
13 views

MODISTool R Error: Can't call method “prepare”

I have already used Modistool in R a few times, but lately I am facing the following error while using the function GetProducts(), GetBands(Product = "MOD13Q1") MODISTools::GetProducts() Error in ...
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0answers
26 views

How to extract EVI from MODIS hdf data from several time using MRT?

I have been using Modis Reprojection Tool (MRT) to extract EVI from MODIS hdf files. So I have 23 MODIS hdf files from 1 year (16 days temporal) but from the same scene (h28v09). How to extract EVI ...
0
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0answers
17 views

Land-Water mask for MODIS 0.05deg grid

I need to create a worldwide land-water mask for a series of MODIS LST/VI images (0.05 deg). I know that each MODIS hdf file contains a land-water mask. However, this mask changes between different ...
2
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1answer
49 views

MODIS temperature and NDVI data?

hope anyone could give me some hints here. I tried to download free MODIS data from their page(resolution 500m, 1km). Im interested in NDVI and temperature data. But when i load the hdf files into my ...
0
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1answer
60 views

smoothing raster layer stack using R

I'm trying to do smoothing for .tif stack layer of 331 bands. I used this code in R : setwd("D:\\") raster_dir <- "D:\\Modis VI quality\\" VI <- brick(paste(raster_dir,"...
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0answers
27 views

Smooth raster stack

How can I smooth a raster stack of 300 bands using R/Arcgis/Envi? I used this code: setwd("D:\\") raster_dir <- "D:\\Modis VI quality\\" x <- brick(paste(raster_dir, "laikipia_VI_quality....
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0answers
17 views

MODIS MCD43A3 albedo product: good quality observation and fill value at the same time?

I’m using the MODIS MCD43A3 albedo product on one of my projects. I only used the good-quality values determined based on the BRDF_Albedo_Quality band recorded in the associated MCD43A2 product. ...
0
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1answer
28 views

Raster Mosaic fault using R

I'm trying to mosaic two raster images using R. I used this script: setwd("D:\\Modis EVI\\") raster_dir <- "D:\\Modis EVI\\" r1 <- brick(paste(raster_dir,"evi8_stack.tif", sep="")) r2 <- ...
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0answers
48 views

How to convert .HDF to .Tiff and keep the number of the output files exactly as the input?

I have 332 .HDF files that I have processed in R to convert them to .Tiff. It has worked fine, however, the number of output files are not the same as the number of the input files! Input is 332, ...
0
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1answer
45 views

how to create raster stack using R

I have 300 .tiff files, that i need to create raster stack of them. Can you please help me with R code for that? I can do in Arcgis, Envi, R. I have tried: setwd("F:\\MODIS\\Modis EVI\\HDF8 EVI") ...
4
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2answers
141 views

How to correctly parse MODIS QA layers?

I'd like to correctly parse the MOD13Q1 VI Quality layer (see Table 2 in "layers" here). For this, I'm trying to follow Example 1 from this tutorial (page 10). I'll illustrate my problem with a pixel ...
2
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1answer
105 views

Recommendation for getting TIF raster from modis HDF, for processing in R

I've downloaded a set of modis mod13q1 HDF files, e.g. MOD13Q1.A2016097.h11v05.006.2016114040325.hdf. I'd like to load the 250m_16_days_EVI and 250m_16_days_pixel_reliability bands into R as rasters. ...
1
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3answers
96 views

32-days composite using LST 8-days Data

I want to make a 32-days composite from 8-days LST data by taking its average value, but I am facing a problem in checking QC-day, the other thing is, due to data gaps (missing DN values) we cannot ...
0
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0answers
69 views

how to convert the values of NDVI anomalies in percentage?

I have used NDVI-MODIS MOD13Q1 product to calculate NDVI anomaly for 13 years (2000-2012). I multiplied the product with the scale factor 0.0001. the problem that I am facing is that the, High and ...
2
votes
1answer
47 views

MODIS data with .hdf extension not compiling in Ubuntu

I am trying to use GDAL to read .hdf file, but it does not seem to recognize the extension. It works fine in Windows system. The GDAL open command gives the following error message: ERROR 4: `...
1
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0answers
80 views

Troubling using MODIS package in R (mac). Error with gdal

I'm new to using MODIS data, and have been trying to set up a a way to use the HDF files produced by MODIS on R. I had trouble with gdal (could only download the package through system dialog), and ...
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2answers
138 views

Analysis MODIS NDVI - MOD12A2

I am new here and also in remote sensing. I am trying to analyse the images that I downloaded from MODIS, which are the Vegetation Indices 16-Day L3 Global 1km. With that I want to analyse the change ...