The NASA Application for Extracting and Exploring Analysis Ready Samples (AppEEARS) site allows users to access MODIS and Landsat data for selected point locations without the need to actually download these raster datasets. You can manually enter one or more point locations or upload a file of sites for analysis. On the site you can generate charts and graphs of these data individually or in combination, over various tim
The Oak Ridge National Laboratory distributes global subsets of many MODIS land products. The subsets are spatially limited to a maximum of 200 km X 200 km in size but can cover the entire time of the MODIS program. This is an easy way to obtain a time series of data for you research projects.
The data are available at the ORNL DAAC at:
MODIS Conversion Tool Kit
Importing and Converting MODIS Daily Scenes
ENVI can open and process most MODIS HDF data. However, the data formats and specific processing steps differ for daily scenes and the various domain products. Daily scenes have geographic coordinate information embedded in the file. Instructions for importing these data are covered in another FAQ. MODIS products are typically distributed using the sinusoidal projection in 10º tiles. Instructions for processing several types of data are described below.
Individual daily MODIS scenes can be obtained at the Level 1 and Atmosphere Archive and Distribution System (LAADS) at: https://ladsweb.nascom.nasa.gov/search/. The page should open with the 1 Products tab active. In the upper left specify the appropriate sensor(s); Terra, Aqua, or Combined. Then select the MODIS Collection. Currently the most recent is Collection 6.
MODIS data can be placed in two broad categories; daily scenes and derived products. You can order a daily scene for any specific date and location; and at different times of day and night as mentioned above.
MODIS is an extensive program using sensors on two satellites that each provide complete daily coverage of the earth. The data have a variety of resolutions; spectral, spatial and temporal. Because the MODIS sensor is carried on both the Terra and Aqua satellites, it is generally possible to obtain images in the morning (Terra) and the afternoon (Aqua) for any particular location. Night time data are also available in the thermal range of the spectrum. You should consider time of day when ordering a scene for a specific day.