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

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0
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0answers
70 views

Clip .hdf (MODIS) rasters by shapefile

I am trying to do a temporal analysis on vegetation quality so I downloaded a MODIS .hds raster from earthexplorer. When I opened the file into ArcMap 10.2.2, it came as a group of 11 rasters. I stuck ...
0
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2answers
42 views

MODIS product MCD43A3 stating 16 periodicity but when downloadad I have files every 8 days

I'm downloading the MODIS derived Albedo 16-Day L3 Global 500 m resolution product. I expected to have a dataset for dates every 16 days. Instead I have datasets every 8 days as can be seen in the ...
3
votes
0answers
78 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 ...
1
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1answer
79 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 ...
2
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0answers
43 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 ?
4
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0answers
97 views

How do I open MOD17A3 in ENVI such that it is properly georeferenced?

I am using ENVI 5.1 on Windows 8. I am trying to open a MOD17A3 (MODIS Net Primary Productivity standard product - L4) .hdf file which I downloaded from the USGS website. I am still a beginner at ...
1
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1answer
49 views

TIMESAT Land cover class

Is it possible to monitor phenology of only 2 land cover classes in TIMESAT? Example is corn and wheat for 7 years. Sowing structure of this crops changes every year, i.e. their location on an image ...
0
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2answers
73 views

Modis LandCover processing

is there any tool to open and process mcd12q1(modis landcover product)? apparently Envi doen't work for this. any help highly appriciated.
0
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2answers
216 views

Using MODIS Data after FLAASH

I am working on my thesis and I need to convert modis MOD021km data to reflectance and Brightness temperature.I know that some plugins for Envi is doing this with modis data but I want to run an ...
1
vote
1answer
131 views

Does MOD021km images from MODIS needs atmospheric corrections

I have downloaded some mod021km modis images and I want to work with them.I want to know does these data needs atmospheric corrections?sth like FLASSH in ENVI or other methods?I can convert hdf files ...
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2answers
98 views

How convert a Modis hdf to txt with lat long using a command line

I need convert, from command line, an Modis hdf file to txt with lat/long extracting EVI. Thanks
3
votes
1answer
198 views

Working with MODIS in R

I am new to using MODIS data and was hoping to get some help starting out. I have been able to download the hdf file but viewing it in R has been a problem for me. What I have found so far, and ...
0
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1answer
53 views

How to get MODIS data with 3 band and step to change hdf file to colored map ?

i just convert hdf file to tiff with MRT but my result is grayscale map,How to get MODIS data with 3 band and step to change hdf file to colored map ? thanks
0
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1answer
222 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 ...
1
vote
2answers
154 views

calculate EVI for numerous tiles

I am trying to calculate EVI from MODIS data in Arc. I know how to run one raster group of 3 bands but don't know how to tell it to move on to the next group of 3 bands in that directory. Here is the ...
0
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0answers
83 views

Trouble with reading Leaf area index (LAI) Modis on QGIS

I am having trouble reading my Modis LAI data on QGIS. I imported my Modis hdf files and I used the QGIS raster calculator to apply the scale factor and all I get is a blank gray tile. My goal is to ...
1
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2answers
163 views

Tasseled Cap Transformation on MODIS in GRASS

I would like to know how to perform a Tasseled Cap Transformation on MODIS, in GRASS. I've found this https://searchcode.com/codesearch/view/19063909/ but I don't know if this has been tested. I'm ...
1
vote
1answer
126 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 ...
3
votes
1answer
185 views

Reprojecting MODIS Ice Sea Temperature products with gdalwarp

I have problems projecting MODIS Ice Sea Temperature (IST) products to EPSG:3031 (Antartic Polar Stereographic) using gdalwarp. The product I'm working with is MOD29E1D, documented here, p33: The ...
2
votes
1answer
135 views

Kriging from raster with missing data in ArcGIS

I have MODIS satellite imagery that depicts a range of surface temperatures. However, many of the cells are missing values. I think I need to perform Kriging in order to obtain an average value for ...
2
votes
1answer
349 views

Extract elevation data from Landsat / MODIS imagery?

Just curious, have anyone tried to extract elevation data from LANDSAT or MODIS imagery? So far, I came across one journal by Toutin who did so using adjacent LANDSAT 7 imageries. Results seem pretty ...
1
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0answers
54 views

Urban Heat Island USING ENVI

I have downloaded MODIS images for a specified area.. Its my first time that I am working on UHI (Urban Heat Island).. I need to know the methods to work on it.. I am using ENVI for this.
4
votes
3answers
683 views

Install gdal in CentOS without Root

I have been struggling to get python setup to do some image processing, so I really need the http://www.gdal.org/ GDAL libraries installed on CentOS 6.5. I want to install the package in a local ...
1
vote
1answer
203 views

Reproject MODIS level 3 chlorophyll data using gdal

I am trying to reproject MODIS Level 3 chlorophyll data (for instance, this file) using gdal in R. I used gdal_translate and gdalwarp functions. There was no crs information associated with ...
2
votes
1answer
451 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 ...
2
votes
1answer
66 views

Compute number of days with snow

I have a project and I want to map the effective number of days with snow cover for a year in some mountain area. Until now, I have processed the MOD10A2 (8 days snow cover) product derived from MODIS ...
1
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1answer
201 views

Processing MOD35_L2 HDF Cloud Masks

I am attempting to create a binary cloud mask from the MOD35_L2 data products located at http://ladsweb.nascom.nasa.gov/data/ When opening the MOD35_L2 data in ENVI or the MRTSwath tool it reports 6 ...
-1
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1answer
619 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 & evni 4.7. Can you ...
1
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0answers
207 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 ...
0
votes
1answer
99 views

how to multiply and group values of NDVI in Erdas

I have downloaded the MODIS data for calculating the NDVi but the ranges of values in its attribute table ranges from -32768 to 9830 i want to club the similar values upto 2 decimal places and also ...
0
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0answers
20 views

How to compile the source code of module MOD14 of NASA

I'm working in a project which uses an Active Fire Detection base on MODIS (MOD14) of NASA. The source code and compiled-file can be downloaded at NASA Now I want to compile the source code, ...
1
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0answers
226 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?
1
vote
1answer
96 views

Lat/lon of pixel inside Landsat scene

How do I find the lat/lon of each pixel inside a landsat scene. Either the equations for converting i,j to lat/lon or just a bunch of files, one for each scene. Background: I have downloaded a bunch ...
0
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0answers
162 views

MODIS products reprojection problem

I am working with Modis Data (MOD02, MOD11, MOD03, MOD35). In particular I am looking for a solution to reproject the subdatasets below, into albers equal. Because I am using NLCD dataset which uses ...
4
votes
2answers
170 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
vote
0answers
270 views

problem of using TIMESAT to processing MODIS NDVI

I want to use TIMESAT software to analyse time series MODIS NDVI data. Firstly, I use MRT tool to mosaic,subset and project MODIS NDVI data and output data as GEOTIFF format, and save as ENVI standard ...
1
vote
2answers
219 views

problems of display modis ndvi with TIMESAT

I use MODIS MRT tool mosicia tow tiles MODIS NDVI data, then use TIMESAT image view to display the mosaic data, encounting file size waring : and after drawing data, the sequences of two tiles is ...
0
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0answers
164 views

MODIS images set CRS and reproject

I am developing a plugin which reads MODIS images, and I know that MODIS images are in sinusoidal projection and I need to set that CRS and project the image to WGS84 (epsg 4326) in python. I search ...
0
votes
1answer
100 views

change spatial resolution

I have two types of image, one of them is a TRMM image with 0.25 degree cells and the other one is a MODIS image with 1 km spatial resolution. How can I change my TRMM image resolution to 1 km ...
1
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0answers
87 views

How to select MODIS pixels with 80% homogeneous landcover from landsat classification?

I have a complex landcover classification for a landsat scene at 30m spatial resolution. Includes about 600 land cover classes. There is a fair amount of clumping per group. I have a MODIS EVI 16 day ...
-2
votes
1answer
162 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??
3
votes
3answers
910 views

Convert 800 .hdf4 files to Tiff using GRASS/QGIS/SAGA/GDAL/R

I've have MODIS ndvi data (MODIS_Grid_16 days NDVI) from the iberian peninsula, from February of 2000 to August of 2012 (really big data). How do I batch convert about 800 .hdf MODIS files to .tif ? ...
1
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0answers
128 views

carbon sequestration using NDVI [closed]

For my project I need to map areas of major carbon sequestration using NDVI. The plan is that areas that have a high NDVI value (which stays high over seasons and over years) could be identified as ...
1
vote
1answer
2k views

How to process MODIS ndvi data using QGIS/GRASS/R?

I have MODIS ndvi data (MODIS_Grid_16 days NDVI) from the iberian peninsula (3 tiles), from February of 2000 to August of 2012 (really big data). I want to know how to deal with this kind of files. My ...
0
votes
0answers
128 views

MODIS HDF to Corrected Reflectance Bands 7-2-1. Change Reflectance

Convert HDF to Tiff easily. But I can not get the images to 7-2-1 bands. Like this : How can I get this image from HDF and what product should I use (MYD09GQ and etc)? Maybe using a ArcGIS? Thanks ...
0
votes
1answer
85 views

Call MRT Swath from IDL

Do you know how to call MRT Swath from IDL? I would like to work with Modis L1B (MOD02HKM), read it, reproject, some processing and writing the results. Any help highly appreciated.
0
votes
1answer
93 views

MODIS L1B to Reflectance

Could we convert MODIS L1B to reflectance data rather than using data product MOD09 (7 bands)? If can, may I know how to convert it? Is there any source, published paper, forums, or any modeler (.gmd) ...
2
votes
1answer
1k views

Reprojected MODIS NDVI has range from -32768 to 32767, expected -1 to 1

I'm new to StackExchange and to remote sensing. I am working with MOD13Q1 250m 16-day MVCs. My goal is to use NDVI time-series to classify cropping pattern and crop type, then link this data to ...
1
vote
3answers
93 views

What is meaning of Emissive in ENVI?

When I view MOD02 data in ENVI directly with ... File--Open image file, ENVI automatically loads data. So what is the meaning of Emissive? The description of MOD02 data can be found in MOD 02 - ...
2
votes
2answers
1k 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 ...