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VIIRS/S-NPP Vegetation Indices (NDVI/EVI) at California Tonzi Ranch

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BandDescriptionData BandsQuality Filtered and ScaledSummary Data
500_m_16_days_EVI16 day EVI average csv json csv jsoncsv json
500_m_16_days_EVI216 day EVI2 average csv json csv jsoncsv json
500_m_16_days_NDVI16 day NDVI average csv json csv jsoncsv json
500_m_16_days_blue_reflectanceBlue band reflectance csv json
500_m_16_days_composite_day_of_the_yearDay of the year csv json
500_m_16_days_green_reflectanceGreen band reflectance csv json
500_m_16_days_NIR_reflectanceNIR band reflectance csv json
500_m_16_days_pixel_reliabilityQuality reliability csv json
500_m_16_days_red_reflectanceRed band reflectance csv json
500_m_16_days_relative_azimuth_angleRelative azimuth angle csv json
500_m_16_days_sun_zenith_angleSun zenith angle csv json
500_m_16_days_SWIR1_reflectanceSWIR1 band reflectance csv json
500_m_16_days_SWIR2_reflectanceSWIR2 band reflectance csv json
500_m_16_days_SWIR3_reflectanceSWIR3 band reflectance csv json
500_m_16_days_view_zenith_angleView zenith angle csv json
500_m_16_days_VI_QualityVI quality indicators csv json
All Bandscsv jsoncsv jsoncsv json

See File Formats documentation for details. Pixel Numbering Scheme

ProductVIIRS/S-NPP Vegetation Indices (NDVI/EVI)
CoordinatesLatitude: 38.4316, Longitude: -120.965983 (WGS84 datum)
Areal ExtentApproximately 8.5 km [17 Pixels] Wide x 8.5 km [17 Pixels] High
Subset Date Range2012-01-17 (2012017) to 2024-05-24 (2024145)
Site IDus_california_tonzi_ranch
Quality Control ConditionsAs Specified by Science Team (See QC Details tab)

Cite the Fixed Sites Subsets Tool [1] and the subset product [2] with the following citations. You may also download BibTeX citation

[1] ORNL DAAC. 2018. Fixed Sites Subsetting and Visualization Tool. ORNL DAAC, Oak Ridge, Tennessee, USA. Accessed November 21, 2024. Subset obtained for VNP13A1 product at site id 'us_california_tonzi_ranch'. https://doi.org/10.3334/ORNLDAAC/1567

[2] Vermote, E. 2023. VIIRS/NPP Vegetation Indices 16-Day L3 Global 500m SIN Grid V002. NASA EOSDIS Land Processes DAAC. https://doi.org/10.5067/VIIRS/VNP13A1.002

Location Details

Latitude [38.4316] Longitude [-120.965983]: Horizontal Tile [08] Vertical Tile [05] Sample [628] Line [188]

Subset area boundarySubset area boundary
Corner Coordinates
Northwest Corner Latitude,Longitude: 38.467000 N, 121.070622 WNortheast Corner Latitude,Longitude: 38.467000 N, 120.980155 W
Southwest Corner Latitude,Longitude: 38.396167 N, 120.951914 WSoutheast Corner Latitude,Longitude: 38.396167 N, 120.861535 W
  • QC Filter Conditions
  • QC explanation for VIIRS/S-NPP Vegetation Indices (NDVI/EVI_QC)
  • QC bit word numbering (0,1,2,3,4,5,6,....n):(n=7 or 15 or 31)
Filter ClassBitsBinaryQA-bitsValue
(Bin)		Value
(Int)		Bands
applied		QC bandDescriptionDisplay
MODLAND_QA16yes14-15000all500_m_16_days_VI_QualityVI produced, good qualityPresented
MODLAND_QA16yes14-15011all500_m_16_days_VI_QualityVI produced, but check other QAPresented
MODLAND_QA16yes14-15102all500_m_16_days_VI_QualityPixel produced, but most probably cloudySupressed
MODLAND_QA16yes14-15113all500_m_16_days_VI_QualityPixel not produced due to other reasons than cloudsSupressed

Timeseries View

VNP13A1 / 500_m_16_days_NDVI (All acceptable pixels)

Toggle Time Series Visualization
Data are being created, check progress bar and log
Includes all pixels that have acceptable quality

VNP13A1 / 500_m_16_days_EVI (All acceptable pixels)

Toggle Time Series Visualization
Data are being created, check progress bar and log
Includes all pixels that have acceptable quality

VNP13A1 / 500_m_16_days_EVI2 (All acceptable pixels)

Toggle Time Series Visualization
Data are being created, check progress bar and log
Includes all pixels that have acceptable quality

Gridded View



Additional Information

MODIS Landcover IGBP Classification Scheme (Type_1 MCD12Q1)

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BandDescriptionData Bands
LC_Type1Land Cover Type 1: Annual International Geosphere-Biosphere Programme (IGBP) classification csv json

Shannon Diversity Components: Richness= Evenness=

User Guide for the MODIS Land Cover Type Product (MCD12Q1)PDF

VIIRS/NPP Land Surface Phenology time series (VNP22Q2)

Phenology region for user selected area 8.5 km wide x 8.5 km high

Cycle 1

Cycle 2
  • GreennessIncrease: Date of onset of greenness increase in the subset area
  • GreennessMaximum: Date at which canopy greenness approaches its seasonal maximum in the subset area
  • GreennessDecrease: Date at which canopy greenness begins to decrease in the subset area
  • GreennessMinimum: Date at which canopy greenness reaches a minimum in the subset area
  • MidGreenup: Date at a mid-greenup phase in the subset area
  • MidSenescence: Date at a mid-senescence phase in the subset area

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ProductData Bands
VNP22Q2.001 csv json

User Guide for the VIIRS/NPP Land Cover Dynamics Product (VNP22Q2)PDF

Resources

Create statistics plots in R
Visualize the data from the 'Downloads' section above as informative plots in R. Using the provided scripts, different statistical plots can be easily generated, such as plots of mean monthly values or mean yearly values, frequency histograms, time series plots with years stacked, etc.