viirs vs modis

The shading reflects the VIIRS … Level 0-3 Near real-time (NRT) products are provided from the MODIS (Moderate Resolution Imaging Spectroradiometer) instruments on both the Terra (AM) and Aqua (PM) satellites. Bias=(VIIRS – MODIS)*100%/MODIS Compute bias mean by using all ROIs for each SNO event Construct and analyze the bias time series SNO time difference of more than 8 minutes causes the movement of clouds and its shadows.

Replacing MODIS band 1 with either band 13 or 14 is better in terms of spectral match but the saturation issue in either band (13 or 14) provide would a much lower number of valid data points than the use of band 1. December 13, 2016 by chris | 0 comments.
MODIS Data; VIIRS Data; LANCE NRT3; LANCE NRT4; Imagery; Operational PGE Versions; NRT vs Standard Product; MODIS C6.1 Atmosphere; MODIS C6 Atmosphere; MODIS C6 Land; MODIS MAIAC (MCD19AxC) MODIS & VIIRS L3 ”n-day” Land Products; VIIRS C1 Land (Suomi) VIIRS C1 LST&E (VNP21) VIIRS C2 Land (JPSS1) Resources As indicated in the title this is for OLCI, i.e. Remote Sensing Reflectance and Derived Products: MODIS & VIIRS MODIS/VIIRS Science Team Meeting 6-10 June 2016, Silver Spring, MD Bryan Franz Ocean Ecology Laboratory NASA Goddard Space Flight Center .

The VIIRS 375 m active fire product is described in Schroeder et al (2014).The product builds on the MODIS fire product heritage [Kaufman et al., 1998; Giglio et al., 2003 et al. VIIRS vs MODIS example from Idaho on September 2012: Nearly ten fire complexes were burning in Idaho on September 9th and both Suomi-NPP VIIRS and Aqua-MODIS detected numerous hot spots. Between VIIRS and MODIS RSB, the RSR differences between the spectrally matched bands (Table 1) are generally small except between VIIRS M5 and MODIS band 1 (Figure 2). MODIS and NPP VIIRS, the SNO orbits are nearly parallel, providing SNO period fors 20 to 50 minutes depending on orbit (Figure 1). The shading reflects the VIIRS …


Given the close timing in overpass (Aqua was only 20 minutes behind S-NPP) and similar viewing angle, the agreement in detections is quite good, as evident in the grid plot. The VIIRS mission observes sea ice at 750 meter resolution, compared with 1 kilometer for MODIS, and observes snow cover at 375 meters, compared with 500 … The VIIRS sensor was designed to extend and improve upon the series of measurements initiated by its predecessors, the Advanced Very High Resolution Radiometer (AVHRR), the Moderate Resolution Imaging Spectroradiometer (MODIS), and the Sea-viewing Wide Field-of-view Sensor (SeaWIFS). VIIRS data will be used to expand upon the MODIS applications to fire and air quality monitoring, agriculture monitoring and production modeling, carbon modeling and flood and sea ice mapping. VIIRS observes the same phenomena that MODIS tracks, acquiring visible and infrared imagery and radiometric measurements of Earth’s atmosphere, land, and oceans. Based on my initial look at the Sentinel-3 data (see part 1, part 2 and part 3 for the details) here some comparitive assessments relative to the existing MODIS/VIIRS systems. VIIRS not only lengthens the MODIS time series, it improves resolution. Both the LANCE-MODIS and LANCE VIIRS-Land elements are provided by the MODIS Adaptive Processing System (MODAPS) operated by the GSFC Terrestrial Information Systems Laboratory, Code 619. the her hand, On the otSNO periods between Terra MODIS and NPP VIIRS are rather short due to their non-parallel orbits (Figure 1). Suomi-NPP VIIRS Sahara 2014 DOY013 R G B VIIRS 662 - 682 nm 545 -565 nm 478 - 488 nm MODIS 620 - 670 nm 545 - 565 nm 459 - 479 nm MODIS Version 006 (left) VIIRS (right) BSA (Black-sky albedo) Tile H17V06 1.24µm BSA R2=0.9991 Red BSA R2=0.998 8 ], using a multi-spectral contextual algorithm to identify sub-pixel fire activity and other thermal anomalies in the Level 1 (swath) input data. Latitude limits: ±40° Note: MODIS collection 6 data is used .

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