Desertification-A global monitoring approach

Ulf Helldén; Christian Töttrup

Desertification-A global monitoring approach

Ulf Helldén, Christian Töttrup

Dept of Physical Geography and Ecosystem Science

Research output: Contribution to conference › Paper, not in proceeding › peer-review

Abstract

This paper presents the first results of an ongoing study on the use of the NOAA AVHRR based GIMMS 8 km global NDVI data set (1981-2004) for desertification monitoring. Our monitoring and assessment was carried out on a regional-global scale. Time series of NDVI and standardized annual NDVI anomalies (1981-2004) were compared with corresponding 0.5 degrees spatial resolution gridded annual rainfall, 1901-2002 and with 2.5 degrees gridded annual rainfall (1979-2005) and corresponding standardized anomalies (z-scores).

The study so far was carried out within the frames of the Integrated Project DeSurvey (A Surveillance System for Assessing and Monitoring Desertification; 2005-2010), FP6. The study is still in progress.

The areas under study include the Mediterranean basin with Southern Europe and Northern Africa, the Sahel (East and West Sahel), major parts of Southern Africa, China and the drylands of South America, i.e. important parts of the reported desertification prone areas of the world.

Original language	English
Publication status	Submitted - 2008
Event	Wengen Workshop on Global Change Research: Edition 2007; Climate Change and Desertification: Monitoring, Modelling and Forecasting - otel Regina, Wengen, Switzerland Duration: 2007 Sept 10 → 2007 Sept 13

Conference

Conference	Wengen Workshop on Global Change Research: Edition 2007; Climate Change and Desertification: Monitoring, Modelling and Forecasting
Country/Territory	Switzerland
City	otel Regina, Wengen
Period	2007/09/10 → 2007/09/13

Bibliographical note

Proceedings are ecpected tp be printed during spring 2008

Subject classification (UKÄ)

Physical Geography

Free keywords

Land degradation
Global change
Desertification
NOAA AVHRR NDVI
Remote sensing

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

@conference{dc7cd144efc345bbae93229d6349c926,

title = "Desertification-A global monitoring approach",

abstract = "This paper presents the first results of an ongoing study on the use of the NOAA AVHRR based GIMMS 8 km global NDVI data set (1981-2004) for desertification monitoring. Our monitoring and assessment was carried out on a regional-global scale. Time series of NDVI and standardized annual NDVI anomalies (1981-2004) were compared with corresponding 0.5 degrees spatial resolution gridded annual rainfall, 1901-2002 and with 2.5 degrees gridded annual rainfall (1979-2005) and corresponding standardized anomalies (z-scores). The study so far was carried out within the frames of the Integrated Project DeSurvey (A Surveillance System for Assessing and Monitoring Desertification; 2005-2010), FP6. The study is still in progress. The areas under study include the Mediterranean basin with Southern Europe and Northern Africa, the Sahel (East and West Sahel), major parts of Southern Africa, China and the drylands of South America, i.e. important parts of the reported desertification prone areas of the world.",

keywords = "Land degradation, Global change, Desertification, NOAA AVHRR NDVI, Remote sensing",

author = "Ulf Helld{\'e}n and Christian T{\"o}ttrup",

note = "Proceedings are ecpected tp be printed during spring 2008; Wengen Workshop on Global Change Research: Edition 2007; Climate Change and Desertification: Monitoring, Modelling and Forecasting ; Conference date: 10-09-2007 Through 13-09-2007",

year = "2008",

language = "English",

}

TY - CONF

T1 - Desertification-A global monitoring approach

AU - Helldén, Ulf

AU - Töttrup, Christian

N1 - Proceedings are ecpected tp be printed during spring 2008

PY - 2008

Y1 - 2008

N2 - This paper presents the first results of an ongoing study on the use of the NOAA AVHRR based GIMMS 8 km global NDVI data set (1981-2004) for desertification monitoring. Our monitoring and assessment was carried out on a regional-global scale. Time series of NDVI and standardized annual NDVI anomalies (1981-2004) were compared with corresponding 0.5 degrees spatial resolution gridded annual rainfall, 1901-2002 and with 2.5 degrees gridded annual rainfall (1979-2005) and corresponding standardized anomalies (z-scores). The study so far was carried out within the frames of the Integrated Project DeSurvey (A Surveillance System for Assessing and Monitoring Desertification; 2005-2010), FP6. The study is still in progress. The areas under study include the Mediterranean basin with Southern Europe and Northern Africa, the Sahel (East and West Sahel), major parts of Southern Africa, China and the drylands of South America, i.e. important parts of the reported desertification prone areas of the world.

AB - This paper presents the first results of an ongoing study on the use of the NOAA AVHRR based GIMMS 8 km global NDVI data set (1981-2004) for desertification monitoring. Our monitoring and assessment was carried out on a regional-global scale. Time series of NDVI and standardized annual NDVI anomalies (1981-2004) were compared with corresponding 0.5 degrees spatial resolution gridded annual rainfall, 1901-2002 and with 2.5 degrees gridded annual rainfall (1979-2005) and corresponding standardized anomalies (z-scores). The study so far was carried out within the frames of the Integrated Project DeSurvey (A Surveillance System for Assessing and Monitoring Desertification; 2005-2010), FP6. The study is still in progress. The areas under study include the Mediterranean basin with Southern Europe and Northern Africa, the Sahel (East and West Sahel), major parts of Southern Africa, China and the drylands of South America, i.e. important parts of the reported desertification prone areas of the world.

KW - Land degradation

KW - Global change

KW - Desertification

KW - NOAA AVHRR NDVI

KW - Remote sensing

M3 - Paper, not in proceeding

T2 - Wengen Workshop on Global Change Research: Edition 2007; Climate Change and Desertification: Monitoring, Modelling and Forecasting

Y2 - 10 September 2007 through 13 September 2007

ER -

Desertification-A global monitoring approach

Abstract

Conference

Bibliographical note

Subject classification (UKÄ)

Free keywords

UN SDGs

Fingerprint

Cite this