How big is a MODIS pixel?

How big is a MODIS pixel?

250 m
The ‘Moderate Resolution Imaging Instrument’ MODIS, a 36-channel imaging spectrometer with a pixel size of 250 m, acquires a global data coverage within one to two days. Detailed technical specifications can be found on the NASA MODIS pages.

How do I get Modis data?

How to Download MODIS data

1. Step 1: Define Your Study Area (AOI)
2. Step 2: Define the Data That You Want to Download.
3. Step 3: Define Selection Criteria.
4. Step 4: View Results & Select Data to Order / Download.
5. Step 5: Download Your Data.

What is MODIS good for?

MODIS helps scientists determine the amount of water vapor in a column of the atmosphere and the vertical distribution of temperature and water vapor—measurements crucial to understanding Earth’s climate system.

What is Aqua and Terra?

Aqua and Terra MODIS have almost identical relative spectral response, spatial resolution, and dynamic range for each band. However, Terra is in the morning orbit with an equator crossing time of 10:30 am, and Aqua is in the afternoon orbit with equator crossing time of 1:30 pm.

How accurate is MODIS?

The MODIS Land Science Team requires the geolocation accuracy to be 150 m (1σ), with an operational goal of 50 m (1σ) at nadir (Nishihama et al., 1997). This accuracy requirement and goal guides the design of the MODIS geolocation algorithm and error analysis approach.

How does MODIS detect fire?

MODIS can œsee” fires because fires have a recognizable thermal signature. When the data get turned into an image, the fire-detection locations from the product are added as an overlay on the image, which marks the fires in bright red.

What is the difference between Aqua and Terra satellite?

The only difference is the data input. Terra circles a morning orbit and Aqua an afternoon orbit, which causes differences in solar zenith angle (also sensor view angle and azimuth angles) for daily MODIS images. According to my experience, both products perform very similarly for vegetation change detection.

Is Aqua Terra a dress watch?

Striking the balance between everyday wear and elegant dress watch, the Aqua Terra is the perfect choice for those people looking for one watch for all occasions.

How often is MODIS updated?

MODIS fire detection data and products are continuously updated and published year round to provide temporal and spatial coverage for the variable fire conditions that occur year round on the North American continent. MODIS data are acquired and processed typically within one hour of acquisition.

How big is the MODIS fire burned area pixel?

The MODIS Fire_cci Burned Area pixel product version 5.1 (FireCCI51) is a monthly global ~250m spatial resolution dataset containing information on burned area as well as ancillary data.

What is the sensor resolution of MODIS band 1?

The sensor resolution is 500 m and 250 m (Bands 1 and 2 have a sensor resolution of 250 m, Bands 3 – 7 have a sensor resolution of 500 m, and Bands 8 – 36 are 1 km. Band 1 is used to sharpen Band 3, 4, 6, and 7), imagery resolution is 250 m, and the temporal resolution is daily.

How is Moderate Resolution Imaging Spectroradiometer ( MODIS ) used?

Moderate Resolution Imaging Spectroradiometer (MODIS) Corrected Reflectance Imagery is produced in near real-time (NRT) to provide natural looking images.

Why is MODIS only available for Terra satellite?

This band combination is good for distinguishing liquid water from frozen water, for example, clouds over snow, ice cloud versus water cloud; or floods from dense vegetation. This band combination is only available for MODIS (Terra) because 70% of the band 6 sensors on the MODIS instrument on the Aqua satellite failed shortly after launch.