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

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16 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. ...
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3answers
87 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 ...
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1answer
216 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 ...
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0answers
38 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 ...
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1answer
192 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
401 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
33 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: ...
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0answers
10 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. ...
2
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1answer
228 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
328 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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0answers
50 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
111 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 ...
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1answer
98 views

HDF to Geotiff conversion

can anyone tell the program code or script for converting HDF files to geotiff using MRTSwath tool? I've downloaded MODIS Files for fog estimation but i couldn't find how to process them.
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1answer
242 views

Error in downloading MODIS image using R script

I am trying to download "MOD13A3" MODIS image using R script (http://r-gis.net/?q=ModisDownload) but each time it's ending in error. How to make it work ? ...
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1answer
52 views

GDAL 2.0.1/QGIS 2.14.0 on OSX won't open MODIS HDF?

I'm on OSX 10.9.4, using GDAL 2.0.1 from the terminal. I want to mosaic MCD12Q1 HDFs together with GDAL but my build can't even read them. The file: ...
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1answer
39 views

Downloading MODIS data of cloud cover less than 10%

I use ModisDownload from rts package for downloading MODIS data. But is it possible to specify cloud cover and view angle before downloading? e.g. if I want to download MODIS data for cloud cover less ...
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1answer
39 views

How do you extract the mean fire frequency (raster) for each point within a given buffer size using R?

I am trying to extract fire data (mean and max fire frequency) for each point within a given buffer size (250m) around multiple points. Currently, my point data is in Lat and Long. For the raster ...
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0answers
40 views

MODIS Quality Control in QGIS

I have to process 46 MODIS MOD15A2H images (leaf area index) in QGIS 2.12 Lyon. I have to clean the images from bad pixels using MODIS Quality Control. Is there any method to automate the process for ...
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1answer
51 views

Calculating maximum value in Raster Calculator of ArcGIS for Desktop?

I have MODIS NDVI data of four months and I have to calculate NDVImax. I am using the Raster Calculator of ArcGIS and have been using various algorithms like [MAX ("june2000", "july2000" , ...
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1answer
80 views

Changing the the range for MODIS NDVI

I need to get MODIS NDVI (MOD13A3), but output from EarthExplorer or Daac2Disk HDF format is a numerical range is -2000 to 9996. But I need for futher work basic range -1 to 1. Is there any ...
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1answer
58 views

Doubt in MODIS NDVI range [duplicate]

MODIS-NDVI product MOD13Q1 shows range from -1986 to 9976 but NDVI ranges from -1 to 1. What these value means? What do I need to do as corrections? I have attached an image showing MODIS-NDVI ranges ...
3
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2answers
781 views

Cannot properly import MODIS MOD07_L2 .hdf files into R using rgdal

I've been trying to accurately import and process some .hdf files from the MODIS Atmospheric Profile product (MOD07_L2) in R for several days now. Still, there's something going wrong during data ...
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0answers
45 views

Time series linear interpolation method for cloud not processing properly in my MODIS dataset

I am trying to perform an interpolation to my 3D array (sub-block of MODIS time series dataset with a shape of (46,960,960)) using numpy linear interpolation method to replace cloud pixels with ...
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2answers
40 views

Modis MOD11A1 band math expression

I am trying to calculate the temperature of MOD11A1 and I can't find the expression of band math. How the expression temp < 273 could be written at band math?
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0answers
19 views

Why there is a shif in MODIS coordinate (compared with Landsat/google earth image) after mosaicing and subsetiing the study area?

I am facing some difficulties in processing MODIS data set. To have MODIS data over my study area, I need to mosaic two tiles of MODIS (h29 v12 and h30 v12). I have used the MRT tool by NASA (the ...
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0answers
71 views

MODIS R Package: GDAL Not Available

I am trying to analyze the MODIS EVI 250m, 16day dataset. I found the R MODIS package and am following the instructions here: ...
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1answer
31 views

WMS for Active Fire Data from NASA site - Can't connect

I am trying to connect to the WMS service of the Active Fire Data that NASA provides. This is the site: https://firms.modaps.eosdis.nasa.gov/web-services/#firms-wms where I get the links from. My ...
4
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0answers
36 views

How to reproject MODIS L2 data with lat/lon

I downloaded the MODIS level 2 data for precipitable water vapor (MOD05_L2.A2015193.1535.006.2015194020321.hdf) and the corresponding geolocation file (MOD03.A2015193.1535.006.2015193213734.hdf). When ...
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0answers
17 views

MOD09A1 QC layer

Does anyone know how to handle MOD09A1 Quality flags (QC) in in R? I was trying to use raster package but unable to unlock the QC band.
4
votes
1answer
429 views

How can I parse modis MOD13Q1 quality layers in R?

I'd like to parse MOD13Q1 VI quality layers in R. My original code must have been incorrect, because it gave lots of "deep ocean" flags in the middle of Brazil. After the changes suggested by ...
0
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1answer
249 views

mosaicking and projecting modis land cover data MCD12Q1

I have modis land cover MCD12Q1 data .Its in the sinusoidal projection (.hdf native format ). I have to study the land cover characters from the data for which i have to convert them into .tif format ...
1
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1answer
27 views

transformations from a sphere using R for raster and polygon data [duplicate]

I am planning on using the MODIS burned area products which were produced by Maryland University. These come as either polygons or rasters. In the user guide it says A shapefile version of the MCD45 ...
1
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1answer
203 views

Using Quality Control process for MODIS Leaf Area Index?

Anyone can help in explaining how I can apply Quality Control (QC) for MODIS Leaf Area Index (LAI) to extract the valid pixels of LAI using ArcMap?
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0answers
335 views

Conversion problem of projection of MODIS LAI from sinusoidal to geographic

I am trying to change MODIS data's (LAI) sinusoidal projection to geographic. Actually I did it. But when I reproject it by ERDAS, the output LAI raster moved about 10 km to west side of actual shape ...
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0answers
31 views

How to apply/mask QC layer of MODIS15A2 for extracting good quality pixels from Leaf Area Index product

How to mask cloudy/noise pixels of MODIS LAI product (MODIS 15A2). I'm using MODIS 15A2 LAI monthly data for LAI estimation. After reprojection and applying scale factor I want to mask bad pixels of ...
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0answers
8 views

Corrupt XML files on LP DAAC server

I have built a Python script to pull MODIS data off the LP DAAC server. The script works fine in most locations, but when I tried to pull data for Bangladesh (h26v06), my code threw errors. I ...
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2answers
63 views

MODIS MOD11A1 Reproject Change Data Value

I'm import and reprojected MOD11A1 with GDAL 1.10....my shell script is easy.. for file in *.hdf; do echo "map: $file" gdal_translate -of Gtiff -ot Int16 ...
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1answer
85 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.
0
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1answer
638 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 ...
3
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2answers
2k views

Automatically download Modis image using python script

I need download Modis imagery automatically from the website: https://earthdata.nasa.gov/. I found this link: http://gis-techniques.blogspot.com/2010/06/getting-modis-image-automatically-from.html ...
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1answer
1k views

MRT (MODIS Reprojection Tool) input error

This is my first time to use Modis Swath Tool to deal with images. I've downloaded 4 MOD44B granules (using the FTP script method), and am trying to use MRT to mosaic them. When I add the 2 files I ...
4
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2answers
199 views

Download MODIS data for Mexico

I would like to download MODIS npp images for Mexico but I cannot figure out which files correspond to the country. How can I associate each tile to its location without looking at the million of ...
1
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1answer
89 views

Dose pyModis work with “ModisSwathTool” too?

I am going to use pyModis to work with MODIS data, Since I am quite new to Python, before starting to learn and use pyModis, I have a question for those who are familiar and using pyModis, right ...
3
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1answer
115 views

pymodis download issues

I'm trying to download and process MODIS imagery using pymodis. I have Python 2.7.8 (Spyder), numpy 1.9.1 and gdal 1.11.1. I've also installed WXPython. I originally tried to use the ...
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2answers
93 views

Cannot access MODIS Download from FTP using Python

I tried to access the FTP site of MODIS data using Python ftplib module but always fail to connect. I am connecting using: ftp = ftplib.FTP("e4ftl01.cr.usgs.gov") here is the error: A connection ...
7
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0answers
242 views

Frontal Detection of sst & Chlorophyll image

I am working on sea surface temperature satellite images and looking for delineating gradients in open source on the basis of temperature. Is there any tool like Cayula and Cornillon front detection ...
3
votes
1answer
371 views

Determining phenological events based on Greatest increase NDVI approach?

I have a problem with a phenological study. The study area is in temperate zone of Asia. I have been doing phenological research using MOD VI product. I wanted to extract phenological events ...
1
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1answer
32 views

How to determine the appropriate size of a 3 dimesional raster block/chunk

I am processing large MODIS time series (12 years) dataset with an array dimension of 4800 x 4800 with a data type of Int16-Sixteen bit signed integer. I want to build a 3 dimensional array ...
1
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1answer
36 views

Adding Subdatasets in ArcMap

I have some MODIS imagery that I want to display in true colour, however when I add the data it gives me 13 subdatsets to choose from. I've never worked with this before and I'm not sure which ...
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0answers
17 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 ...