Vegetation Health Index - 231 m 8 days

The Vegetation Health Index (VHI) is based on a combination of products extracted from vegetation signals, namely the Normalized Difference Vegetation Index (NDVI) and the land surface temperature, both derived from MODIS satellite data. The NDVI is based on 8 day maximum value composite MOD09Q1 (v006) reflectance and the land surface temperature (LST) on 8 day MOD11A2 (v006) LST products. The spatial resolution is 231 m, therefore the original 1000 m resolution of the MOD11A2 LST is downscaled to 231 m of the MOD09Q1 reflectance. Both products are masked to the highest quality standards using the provided quality layers. Missing pixel values in the time series are linearly interpolated. Non-vegetated areas are masked using the most recent Corine Land Cover product version for the according year. The final product is regridded to the LAEA Projection (EPSG:3035). The VHI relies on a strong inverse correlation between NDVI and land surface temperature, since increasing land temperatures are assumed to act negatively on vegetation vigour and consequently to cause stress. The data is provided as 8 day measures. The time series is starting from 2001. The VHI values range from 0-100, whereas high values correspond to healthy vegetation and low values indicate stressed vegetation.

Simple

Identification info

Alternate title

ADO_VHI_MODIS_231m_3035

Date (Creation)
2024-10-01T09:51:06
Date (Publication)
2024-10-01T09:51:06
Edition

v1

Citation identifier
https://openeo.eurac.edu/collections/ADO_VHI_MODIS_231m_3035/publisher

Presentation form
Digital map
Purpose

Kogan, F. N. (eds) (1995): Application of vegetation index and brightness temperature for drought detection. In: Advances in Space Research, 15 (11), 91–100. Kogan, F. N. (eds) (1997): Global Drought Watch from Space. In: Bulletin of the American Meteorological Society, 78 (4), 621–636. Kogan, F. N. (eds) (2000): Satellite-Observed Sensitivity of World Land Ecosystems to El Nino/La Nina. In: Remote Sensing of Environment, 74, 445–462.

Status
On going
Point of contact
Role Organisation Electronic mail address
Custodian

Eurac Research - Institute for Earth Observation

earth.observation@eurac.edu

Spatial representation type
Grid
Topic category
  • Imagery base maps earth cover

Extent

Temporal extent

Time period
2001-01-01T00:00:00Z 2022-08-29T00:00:00Z

Extent

N
S
E
W


Maintenance and update frequency
As needed
GEMET - INSPIRE themes, version 1.0

  • Land use

  • Land cover

Product

  • collection

  • vegetation health index

  • vhi

  • modisi

  • ADO project

  • ADO

Platform

  • Terra

Resource constraints

Use limitation

CC BY 4.0

Access constraints
Other restrictions
Other constraints

CC BY 4.0

Supplemental Information

Additional information can be added here

Content Information

Attribute description
Minimum value for cloud coverage
Cloud cover percentage
0.0

Content Information

Attribute description
Maximum value for cloud coverage
Cloud cover percentage
0.0

Content Information

Attribute description
Band: 8d_vhi
Content type
Auxillary Information
Description

Mean wavelength value for the 8d_vhi band

Maximum value
0
Minimum value
0
Identifier
https://www.bipm.org/en/measurement-units/
Name
nanometer

Distribution Information

Distribution format

  • WCS

Distributor contact
Role Organisation Electronic mail address
Publisher

Institute for Earth Observation

earth.observation@eurac.edu

OnLine resource

ADO_VHI_MODIS_231m_3035

Open Application Programming Interface for Earth Observation. More information here: https://openeo.org/documentation/1.0/developers/

OnLine resource

Website

Digital Object Identifier (DOI)

Zellner, P., & Castelli, M. (2022). Vegetation Health Index - 231 m 8 days (Version 1.0) [Data set]. Eurac Research. https://doi.org/10.48784/161b3496-534a-11ec-b78a-02000a08f41d

OnLine resource

Digital Object Identifier (DOI)

Zellner, P., & Castelli, M. (2022). Vegetation Health Index - 231 m 8 days (Version 1.0) [Data set]. Eurac Research. https://doi.org/10.48784/161b3496-534a-11ec-b78a-02000a08f41d

Data quality info

Hierarchy level
Dataset

Report

Measure identification
INSPIRE/Conformity_001

Result

Title

COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Explanation

See technical references

Resource lineage

Statement

Not Available

Hierarchy level
Dataset

Spatial representation info

Number of dimensions
2
Dimension name
Row
Resolution
0.0 m
Dimension description

dims description

Dimension name
Column
Resolution
0.0
Dimension description

dims description

Cell geometry
Area
Transformation parameter availability
false

Reference System Information

Reference system identifier
EPSG/3035

Reference system type
Projected
Hierarchy level
Collection hardware

Instrument

Title

MODIS

Description

Text description of the instrument (if necessary)

Platform

Sponsor
Role Organisation Electronic mail address
Funder

European Space Agency - Copernicus program
Maintenance and update frequency
As needed

Metadata

Metadata identifier
urn:uuid/9f8a695c-23ce-11ef-9957-8d8b4d692a59

Language
English
Character encoding
UTF8
Contact
Role Organisation Electronic mail address
Point of contact

Eurac Research - Institute for Earth Observation

bartolomeo.ventura@eurac.edu

Type of resource

Resource scope
Dataset
Metadata linkage

https://edp-portal.eurac.edu/geonetwork/srv/eng/catalog.search#/metadata/9f8a695c-23ce-11ef-9957-8d8b4d692a59

Date info (Revision)
2024-10-01T09:50:18Z
Date info (Creation)
2024-10-01T09:51:06

Metadata standard

Title

ISO 19115-3

 
 

Overviews

thumbnail

Spatial extent

N
S
E
W


Keywords

ADO ADO project Terra collection modisi vegetation health index vhi
GEMET - INSPIRE themes, version 1.0
Land cover Land use

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Associated resources

Not available