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

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4
votes
2answers
200 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
1answer
92 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
votes
1answer
118 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 ...
1
vote
2answers
105 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
votes
0answers
251 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
375 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
vote
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
vote
1answer
37 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 ...
1
vote
0answers
19 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 ...
0
votes
1answer
60 views

NDVI colour scheme for ArcGIS

Does anyone have a download link for the NDVI colour scheme to use in ArcGIS for Desktop? I am looking for MODIS mod13 data and cannot find an appropriate colour scheme in the programme.
1
vote
2answers
42 views

gdalinfo for Modis layer “NDVI”

I am trying the following command to get info on the NDVI MODIS layer stored in HDF file. I always receive an error. the command and error as below: gdalinfo ...
0
votes
0answers
26 views

SDS for quality assurance MODIS data

Can anyone help me with which quality assurance data to use for MODIS MCD43A4? The QA dataset for this is MCD43A2 which has 4 SDS - Science Data Sets (HDF Layers) 4 UNITS BIT TYPE FILL ...
4
votes
1answer
32 views

Gdal_translate command for SDS having spaces in its name

Can anyone help me with using gdal_translate on an HDF4 dataset that a space? One SDS in the the HDF is: ...
4
votes
2answers
76 views

Accessing the Quality Band for MCD12Q1 with MODISTools GetBands

I am using MODISTools (https://github.com/seantuck12/MODISTools) to process MCD12Q1 data, which, according to the LP DAAC website ...
1
vote
0answers
33 views

Retaining resolution of MODIS data while reprojecting using gdalwarp

Can anyone help me to use gdal(gdalwarp specifically) for reprojection? I am using it to reproject MODIS data : I originally have an hdf file - MCD43A4.A2005001.h08v05.005.2007351192333.hdf which has ...
0
votes
1answer
137 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 ...
1
vote
1answer
189 views

Calculating climatological albedo using MODIS satellite images?

My question is based on the paper Using NOAA AVHRR and SPOT VGT data to estimate surface parameters: application to a mesoscale meteorological model. The authors have calculated albedo, surface ...
1
vote
0answers
62 views

How to mosaic multiple MODIS images of Multiple months using MRT tool?

I have monthly MODIS images for 2001-2014. For few images mosaicing with reprojection can be done using MRT tool. However, for large number of images it's a cumbersome process. There are multiple ...
0
votes
2answers
259 views

extract scientific layers from MODIS HDF Dataeset using Python GDAL

I have been trying to extract scientific data layers from MODIS HDF files but without success. Before I have been doing this type of task using Arcpy, but I want the script that I am currently working ...
0
votes
1answer
158 views

NDVI values for MODIS images

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 ...
4
votes
2answers
272 views

Reconstructing MODIS time-series applying Savitzky-Golay Filter with Python/Numpy

I want to apply the 'Savitzky-Golay' (savgol) filter to my time series, MODIS dataset, to remove noise (i.e., cloud pixels, etc.) in my data. MODIS have quality flags that indicates the reliability of ...
0
votes
1answer
57 views

Comparison of wildfires areas using NBR index obtained by Landsat 8 for 2 dates?

My aim is to compare two images of NBR index obtained by Landsat 8 for two dates: April the 1st and October the 26th (the beginning of the wildfires period and the ending of the period). After that I ...
7
votes
2answers
505 views

How to download MOD16 (Modis Evapotranspiration) image?

I use a 'R' script for downloading MODIS imageries. However, it doesn't give MOD16 product. I could neither find the MOD16 product in earthexplorer website. Though the desired product is available at ...
4
votes
2answers
163 views

Merging rasters in QGIS?

I have 3 modis tiles that I want to merge together. They were all reprojected in the same CRS (from sinusoidal to WGS84 UTM zone 32 N), but I cannot succeed. I have tried with merge and virtual ...
2
votes
0answers
53 views

TIMESAT seasonality data (MODIS EVI)

I am trying to get seasonality parameters from MODIS EVI (MOD13Q1) for Indonesia. I have loaded data from 2013-2015, but the plotted time-series is shifted from what I expect. Indonesia has ...
5
votes
1answer
186 views

Reprojecting MODIS-Sphere ESRI GRID file to WGS84 using QGIS/GDAL

I have an ESRI GRID file projected in MODIS-Sphere (here's the dataset http://urban.yale.edu/sites/default/files/data/setoguneralphutyra_uf.zip) that I need to convert to a WGS84 GeoTIFF. I tried ...
0
votes
0answers
52 views

Flood extent maps using modis 09 imagery

I have created rgb using bands 1 and 2 (250m) of mod09 data. Now i need to create flood extent maps from the same composite band. Now I need to use the density slicing method to create slices of land ...
0
votes
4answers
71 views

How to remove NoData areas from modis 09 data?

I have mosaicked modis09 rasters that have areas of NoData values displayed in black, I have used every option possible from raster con and set null conditions in raster calculator to setting the ...
0
votes
0answers
96 views

Reprojecting MODIS NDVI and reading the hdf output file in ENVI

I'm working with ENVI5.3 and want to open a MODIS NDVI (MOD13Q1) in hdf format. Firstly, I used the Modis Reprojeciton Tool to reproject the modis tile. And I opened the reprojected file in hdf format ...
0
votes
1answer
54 views

Selecting one subdataset when using ModelBuilder in ArcMap for reprojection

I'm trying to reproject roughly 500 MODIS images (MOD09GQ) into an Equal Areas Projection. I've been informed that ModelBuilder would be the best way to do this. However, when I set up my model and ...
0
votes
0answers
37 views

Using night/day-time LST product of MODIS?

I was confused with the night- and day-time bands of the LST product of MODIS. As I understood, these two bands are derived based on the zenith angle; more than 90 degrees for night-time LST, and less ...
5
votes
1answer
315 views

MCD43A3 MODIS products

I have MCD43A3 product and I am using that to get the albedo values(Black sky and White Sky). I have some in-situ snow depth data, corresponding to which I want to get these albedo values. For most ...
0
votes
0answers
9 views

How to CONVERT Modis 09 files from hdf to geotiff [duplicate]

I have about 300 modis 09 files that need to be converted to geotiff format. I initially used the MRTSwath tool, but it would not pick some of the files as input giving the message 'Input Header ...
0
votes
0answers
23 views

Wget download selected files in unknown subfolders

I have this script for YEAR in 2013 2014 2015 ; do wget -r -l1 -p -nd -e robots=off -A "h17v03","h18v03" -R .jpg -R .xml http://e4ftl01.cr.usgs.gov/MOLT/MOD13Q1.005/$YEAR.01.01 so it gets 2 ...
1
vote
1answer
49 views

stack 10 modis ndvi geotiffs and scale them by 0.0001

I have 10 geotiffs Modis ndvi named 2005.tif ... 2014.tif I want to stack them all and create timeseries. i know how to do that, but the stacked images still need scaling by 0.0001. how can i bulk ...
2
votes
0answers
69 views

16-day-MODIS NDVI values seem to be wrong compared to my soil moisture ground data!

I'm using MOD13Q1 product of MODIS for estimation soil moisture. As I know, this product is made up of the maximum value of NDVI of each pixel over 16-day calculated NDVI values. The problem is that ...
3
votes
4answers
1k 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. ...
0
votes
0answers
32 views

StarFM incompatability in Windows

I was asked to make StarFM, which creates a TimeSeries based on Temporal resolution of MODIS with the spectral resolution of Landsat work. Now, according to the barely-present help, it states that the ...
0
votes
1answer
408 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 ...
0
votes
1answer
95 views

how to calculate summary statistics and produce line plot for daily MODIS LST quality bands

I have a raster stack (numpy 3d array) of daily MODIS LST quality bands. The quality bands have pixel values that correspond to the quality of the LST data in each pixel. For example, 2 = no data ...
2
votes
1answer
2k 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
0answers
391 views

Processing MOD35 cloud mask image?

I have a question about processing MOD35 cloud mask image. I worked reprojection on MOD35 cloud mask image using MODIS Swath Tool. The processed results of MOD35 cloud mask are consist of 6 band ...
2
votes
1answer
78 views

Iterate - Raster Calculator - 8 Day MODIS LST to Monthly Avg

I have 8-day MODIS Land Surface Temperature data from 2009-2013. I have used Model Builder to extract the LST_day and LST_Night Subdatasets (in different model runs). What I am attempting to do next ...
2
votes
1answer
41 views

Strange behaviour of MODIS 17A3 NPP values when converting from .hdf (downloaded files) to .vrt to .tif in QGIS

I was hoping someone could help explain a behaviour that I noticed while working with downloaded MODIS 17A3 .hdf files from here: ftp://ftp.ntsg.umt.edu/pub/MODIS/NTSG_Products/MOD17/MOD17A3/ The ...
0
votes
2answers
290 views

how to remove cloud values of Landsat image from R [closed]

How can I remove cloud value of the Landsat8? How can I estimate cloud values for eg: modis cloud values are from 700 to 800. By using R how can I estimate>
2
votes
1answer
41 views

Modis enumeration definitions

Modis MYD03 and MOD03 files contain Land/SeaMask (uint8 with valid_range=0,7) and WaterPresent (uint8 with valid_range=0,8). Though the attribute fields define the valid range, they do not define the ...
0
votes
0answers
103 views

reading raster without making QGIS apply the scale factor to the raster

Since QGIS multiplies the image with the scale factor when reading, it messes up the image if the scale factor is not properly defined to the data as QGIS expected. For example, I am reading MODIS ...
2
votes
1answer
204 views

How to handle 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 ...
3
votes
1answer
92 views

How to interpret MOD44B 8-bit quality layer

I have 15 annual MOD44B (vegetation continuous field) HDFs for 2000-2014, working in Arcmap 10.2. Each contains several bands. The two I'm concerned with are "percent tree cover" and "quality." The ...
0
votes
0answers
10 views

corrected_Optical_Depth 3 different subdataset in extract window

i am particularly interested in extracting Aerosol data from the hdf packed file. I have to do this over several years so i extract first aerosol_Type_Land witch give a alid Range: 0 to 4 (0=mixed, ...