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

learn more… | top users | synonyms

-1
votes
1answer
26 views

Image Processing for vegetation detection using NDVI technique

I have a MODIS 250m resolution satellite image in jpg format.How do i do image processing using NDVI technique on it? Basically i have to detect vegetation for a 250m resolution MODIS image using NDVI ...
0
votes
0answers
10 views

Legend for MCD12Q1 modis land cover data

I have Modis yearly 500m landcover data (MCD12Q1) i native .hdf format . I projected , mosaicked and converted them into .tif format whose values are from 0 to 16 . I set nodata value as 17 . I just ...
1
vote
2answers
168 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
votes
1answer
18 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 ...
4
votes
1answer
122 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 ...
1
vote
1answer
20 views

MODIS MOD10A2 snow product

I have extracted pixel value ( pixel value=200 for snow) from MOD10A2 snow product for my study area. Since MOD10A2 product is distributed every 8-days. i.e., 9th Jan, 17th Jan, 25th Jan,2nd Feb,.... ...
1
vote
0answers
28 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 ...
0
votes
0answers
11 views

opening modis ndvi data .tif in timesat 3.1 windows [duplicate]

my aim is to apply savitzky golay filter to MODIS ndvi data in tif format. how do i open them in timesat 3.1 in windows .i tried opening tif files in imageview but the app does nothing. please help . ...
0
votes
0answers
8 views

lulc unsupervised classification in envi for modis 250m data

I've got modis 250m data with NDVI,RED,BLUE,NIR,MIR bands....i have to obtain 10 classes such as Urban,Evergreen,decidious,cropland,fallowland,plantaion,water,barrenland,land with scrub,land without ...
1
vote
2answers
55 views

GDAL HDF4 Driver on Linux System

I'm running code that works with MODIS HDF4 datasets on a Debian Linux distribution. I am also running this code on a Windows machine. On both the Windows and the Linux machines, I have the most ...
3
votes
1answer
47 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 ...
0
votes
0answers
10 views

lulc mapping from modis surface reflectance

can i prepare LULC with 10 classes from MODIS surface reflectance level 3 data 500m resolution... if so what are the preprocessing techniques should i do on the data..i have to prepare LULC for yearly ...
0
votes
1answer
36 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 ...
0
votes
0answers
34 views

Analysis of MODIS 16 Data Set

I have downloaded the raster data sets of the Evapotranspiration data for about 10 years. I need to analyze those raster data sets. Which tool can I use? Or do I need to download a certain plugin. ...
3
votes
1answer
2k views

processing MODIS hdf files with gdal

I'm trying to open an MODIS file (hdf format) with gdal in a python script under windows OS. I use the HDF4 driver, as read at http://www.gdal.org/frmt_hdf4.html. But when I run it I got this error ...
0
votes
1answer
42 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?
1
vote
0answers
195 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 ...
0
votes
2answers
33 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 ...
0
votes
0answers
29 views

Can't run sgolayfilt () on RasterStackTS in R

I'm quite new in R and remote sensing at all. Had followed the following step to filter my MODIS/NDVI data. library(sp) library(raster) library(rgdal) library(rts) library(signal) getwd() ...
1
vote
1answer
93 views

Different origin between GDAL/Python and ArcMap of a Modis image

I have a Modis image and i load this image in Python using gdal library from osgeo import gdal, ogr INPUT_raster_1 = "C:\\myimage_1km.tif" ds_1 = gdal.Open(INPUT_raster_1, gdal.GA_ReadOnly) ...
4
votes
0answers
65 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 ...
0
votes
0answers
46 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 ...
2
votes
1answer
237 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 ...
3
votes
0answers
53 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
vote
0answers
51 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
votes
0answers
30 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 ?
2
votes
1answer
132 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 ...
1
vote
2answers
98 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
0answers
35 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 ...
1
vote
1answer
68 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) ...
0
votes
2answers
59 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
votes
1answer
57 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
1
vote
1answer
85 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 ...
0
votes
1answer
42 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
2
votes
1answer
68 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 ...
1
vote
1answer
659 views

How do I convert the LST values on the MODIS LST Image to degree celsius

I have downloaded MODIS 8 day average LST images, but the values are way too high. How do I convert the pixel values to degree celsius? Someone said they multiplied the data with 0,02 and then ...
0
votes
1answer
108 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
97 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 ...
1
vote
2answers
114 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 ...
0
votes
0answers
50 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 ...
2
votes
2answers
418 views

How to detect burned areas from Landsat or MODIS datasets using ILWIS?

I'm trying to find a simple tutorial on how to detect and map burned areas from/with ILWIS . I use Landsat 5/7 or MODIS for detection. Any idea?
1
vote
1answer
84 views

Kriging with Raster 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 ...
1
vote
0answers
50 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.
1
vote
1answer
173 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 ...
2
votes
2answers
274 views

MODIS Level 1B batch process

I am a new MODIS Level 1B user. I have been using the MODIS Swath tool to process my images. However, I have over 1000 images to process. I was wondering if there a script available in IDL or R (very ...
4
votes
3answers
476 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 ...
0
votes
0answers
66 views

Cause of MODIS Reprojection Tool errors?

I have installed the MODIS Reprojection Tool (mrt) and it says the installation completed successfully but it does not mosaic my images properly. However, there seems to be some projection errors. ...
4
votes
1answer
97 views

What proportion of the 240m area sensed by MODIS must be forest before it is defined as forest?

MOD12 is a MODIS product at 240m resolution. Landsat produces 30m resolution products, which I resampled to 240m resulting in a raster of proportion forest cover in each 240m pixel (based on the mean ...
0
votes
1answer
154 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 ...
3
votes
3answers
741 views

climatic data from MODIS or other sources

I'm looking for climatic information in the form of raster like MODIS daily LST (Land Surface Temperature) data. I'm looking for other parameters like precipitation, humidity, air pressure and so on. ...