JNCC Sentinel-2 indices Analysis Ready Data (ARD) Normalised Difference Moisture Index (NDMI) v1

Sentinel-Hub NDMI description:

The NDMI is a normalized difference moisture index, that uses NIR and SWIR bands to display moisture. The SWIR band reflects changes in both the vegetation water content and the spongy mesophyll structure in vegetation canopies, while the NIR reflectance is affected by leaf internal structure and leaf dry matter content but not by water content. The combination of the NIR with the SWIR removes variations induced by leaf internal structure and leaf dry matter content, improving the accuracy in retrieving the vegetation water content. The amount of water available in the internal leaf structure largely controls the spectral reflectance in the SWIR interval of the electromagnetic spectrum. SWIR reflectance is therefore negatively related to leaf water content. In short, NDMI is used to monitor changes in the water content of leaves and was proposed by Gao. NDWI is computed using the near-infrared (NIR) and the short wave infrared (SWIR) reflectances:

NDMI = (NIR – SWIR) / (NIR + SWIR)

Sentinel-2 NDMI = (B08 - B11) / (B08 + B11)

These data have been created by the Joint Nature Conservation Committee (JNCC) as part of a Defra Natural Capital and Ecosystem Assessment (NCEA) project to produce a regional, and ultimately national, system for detecting a change in habitat conditions at a land parcel level. The first stage of the project is focused on Yorkshire, UK, and therefore the dataset includes granules and scenes covering Yorkshire and surrounding areas only. The dataset contains Normalised Difference Moisture Index data derived from Defra and JNCC Sentinel-2 Analysis Ready Data.

NDMI files are generated for the following Sentinel-2 granules:

• T30UWE

• T30UXF

• T30UWF

• T30UXE

• T31UCV

• T30UYE

• T31UCA

As the project continues, JNCC will expand the geographical coverage of this dataset and will provide continuous updates as ARD becomes available.

Date (Publication): 2022-05-11T14:37:16

Date (Creation): 2022-05-11T14:37:16

Citation identifier: https://catalogue.ceda.ac.uk/uuid/46f5d503ce284114b5925709258bacc5

Citation identifier: NERC EDS Centre for Environmental Data Analysis / 46f5d503ce284114b5925709258bacc5

Point of contact

Organisation name	Electronic mail address	Role
Joint Nature Conservation Committee (JNCC)	earthobs@jncc.gov.uk	Author
NERC EDS Centre for Environmental Data Analysis	support@ceda.ac.uk	Custodian
NERC EDS Centre for Environmental Data Analysis	support@ceda.ac.uk	Distributor
Department for Environment, Food and Rural Affairs (DEFRA)	unknown	Principal investigator
Joint Nature Conservation Committee (JNCC)	earthobs@jncc.gov.uk	Principal investigator
NERC EDS Centre for Environmental Data Analysis	support@ceda.ac.uk	pointofContact
NERC EDS Centre for Environmental Data Analysis	support@ceda.ac.uk	Publisher

Maintenance and update frequency: Unknown

Update scope: Dataset

Keywords

JNCC
ARD
NDMI
Sentinel 2
EO indices
Analysis Ready Data
Sentinel

GEMET - INSPIRE themes, version 1.0

orthoimagery

Access constraints: Other restrictions

Other constraints: Public data: access to these data is available to both registered and non-registered users.

Use constraints: Other restrictions

Other constraints: Under the following licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.

Spatial representation type: Grid

Language: English

Topic category

Imagery base maps earth cover

Begin date: 2015-07-12T00:00:00

Unique resource identifier: WGS 84

Distribution format

Name	Version
These data are provided in Cloud Optimized GeoTIFF (COG) format.

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
	https://catalogue.ceda.ac.uk/uuid/46f5d503ce284114b5925709258bacc5	CEDA Data Catalogue Page

OnLine resource

Protocol	Linkage	Name
	http://data.ceda.ac.uk/neodc/sentinel_ard/indices/sentinel_2/ndmi/	DOWNLOAD

OnLine resource

Protocol	Linkage	Name
	https://hub.jncc.gov.uk/assets/dcb14a5e-301f-40ae-94c3-22b73fb4ec57	JNCC 'Simple ARD Service' user guide

OnLine resource

Protocol	Linkage	Name
	https://custom-scripts.sentinel-hub.com/custom-scripts/sentinel-2/ndmi/	NDMI description

Hierarchy level: Dataset

Conformance 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

Date (Publication): 2010-12-08

Statement: Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA).

Metadata

File identifier: 46f5d503ce284114b5925709258bacc5 XML

Metadata language: English

Character set: UTF8

Hierarchy level: Dataset

Date stamp: 2025-06-08T02:22:22

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Point of contact

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