Stakeholder Workshop on Earth observation-based information products for drought risk on a national basis

Event Organisers: 

DiMTEC, University of the Free State (UFS), South Africa, ZFL, University of Bonn, UNU-EHS, UNOOSA / UN-SPIDER

Venue Country: 

  • South Africa

Venue City: 

Pretoria and Eastern Cape

Date: 

04/06/2018 to 08/06/2018

Registration Deadline: 

Monday, June 4, 2018

Training type: 

academic

Language of event: 

English

Target Audience: 

Stakeholders, key decision makers, and operational technical audience from the rural development and agricultural sector, water, sanitation, economic and disaster management communities, space agencies, research and technology entities.

Description: 

The Stakeholder Workshop on Earth observation-based information products for drought risk on a national basis (EviDENz) occurred from 4 to 8 June 2018 in Pretoria and Eastern Cape, South Africa.

 

 

 

 

 

 

 

 

Resources




Presentations

PRESENTER
TITLE
PRESENTATION
4 June 2018 - Stakeholder Workshop in Pretoria
UN-SPIDER, DIMTEC and UFS

Welcome stakeholders and roundtable introduction 

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NDMC, SANSA and CSIR

Recent advances in the use of space technologies in South Africa in the agricultural sector and key challenges in monitoring the impacts as per the Sendai framework targets

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Session 1: EvIDENz project and its workflow
ZFL

Segment of the workflow on the use of space-based vegetation indexes

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UNU-EHS

Workflow to estimate the number of people affected due to agricultural drought and understanding drought risk in South Africa

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Session 2: Monitoring droughts in South Africa
Drought monitoring in South Africa

Presentation on efforts in South Africa to monitor drought as a weather event and its impacts on hydrologic resources

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Use of space technologies in agriculture

Recent advances in the use of space technologies in South Africa in the agricultural sector

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Discussion

What are the current challenges in South Africa regarding the compilation of data on impacts of droughts and other hazards to generate reports to be incorporated in the Sendai Monitoring tool?

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5 and 6 June 2018 - Training Segment - Pretoria
UN-SPIDER

Introduction to EvIDENz workflow

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Session 3: Sendai framework monitoring and reporting 
UN-SPIDER 

Training on the EvIDENz workflow

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8 June 2018 - Stakeholder Workshop in Eastern Cape
Session 1: EvIDENz project and its workflows
ZFL

EvIDENZ workflow. A segment of the workflow on the use of space-based vegetation indexes

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UNU-EHS

EvIDENz workflow. Workflow to estimate the number of people affected due to agricultural drought and understanding drought risk in South Africa

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Drought monitoring in Eastern Cape

Presentation on efforts in Eastern Cape to monitor drought as a weather event and its impacts on hydrologic resources

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Session 2: Monitoring droughts in South Africa
UN-SPIDER

Overview of the operational elements of the EvIDENz workflow. Hardware and software employed to use the workflow; data sources and pre-processing; characterization of the severity of droughts in Eastern Cape: an example from the workflows; incorporation of the in-situ data on land-use (agriculture, livestock, population census); the output of the workflow (number of people affected by drought).

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Discussion on potential implementation of workflow

Next steps to incorporate EvIDENz workflow to assess and report on crop losses in South Africa: Modifying workflow to address other provinces in South Africa; testing; and potential implementation

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Background

The duration and intensity of droughts have generally increased in several regions of the world. Agriculture is especially affected, triggering direct consequences on food security, health, and the economic situation of a country. In recent years South Africa has been experiencing severe droughts that have affected cities and rural communities in several regions of the country dedicated to agriculture and livestock. Using South Africa as a pilot country, the project Earth Observation Based Information Products for Drought Risk Reduction at the National Level (EvIDENz) develops new Earth-Observation-based methods to monitor agricultural impacts due to droughts.

The project consortium has developed workflows which can be used to contribute to the monitoring of the implementation of the Sendai Framework for Disaster Risk Reduction 2015- 2030. Therefore, the workflows have been developed in accordance with the Technical Guidance for Monitoring and Reporting on Progress in Achieving the Global Targets of the Sendai Framework for Disaster Risk Reduction. The aim is to raise awareness regarding the use of space-based technology for monitoring progress in disaster risk management as recommended in the UNISDR Technical Guidance. These workflows will be given global visibility and will be promoted through the recommended practices included in the UNOOSA /UN-SPIDER Knowledge Portal.

The workflow developed by the Centre for Remote Sensing of Land Surfaces (ZFL) of the University of Bonn and by the United Nations University Institute for Environment and Human Security (UNU-EHS) as part of the EvIDENz project aims to contribute to the estimation of the number of people engaged in agricultural activities that are affected by droughts. Such an estimation will contribute to assess the effectiveness of efforts conducted by countries such as South Africa to achieve Target B of the Sendai Framework (Substantially reduce the number of 2 affected people globally by 2030, aiming to lower the average global figure per 100,000 between 2020-2030 compared with 2005-2015).

The first segment of the workflow has been developed by the Center for Remote Sensing of the Land Surfaces (ZFL) using a weighted drought hazard classification based on a set of remote sensing indicators. This segment is based on the vegetation condition index taking into consideration the drought timing and the vulnerable growing stages of crops. The assessment is based on an analysis of phenological metrics and employs a weighted linear combination (WLC).

The second segment of the workflow has been developed by UNU-EHS and builds on the drought hazard classification with the assessment of exposed elements for a quantitative measure of the Sendai indicator B-5 (Number of people whose livelihoods were disrupted or destroyed, attributed to agricultural drought). This part of the workflow makes use of in-situ data generated by the agricultural community, in particular the ministry of agriculture and national authorities that provide socio-economic data. The data on the population involved in agricultural tasks and their socio-economic characteristics has been used to estimate the of agricultural dependent population using an indicator-based approach.

Software and data availability plays a vital role in the ability of countries to monitor the impacts of hazards such as droughts. Therefore freely available data and open source software have been used, in combination with complementary in-situ data such as agricultural yield information, population and occupation, to develop the workflows. The EvIDENz workflow is presented as a Recommended Practice in the UN-SPIDER Knowledge Portal. The practice includes explicit, step-by-step instructions to its use.

 

Objectives and Expected Outcomes

The objective of the EvIDENz stakeholder workshop was to make decision makers and technical staff of several institutions of South Africa aware of the workflow developed by ZFL and UNU-EHS to contribute to the estimation of the impacts of droughts on crops and livestock, to understand drought risks and to discuss a methodological approach to implement the use of the workflow. In addition, the workshop was used to train technical staff on the use of the workflows as presented in the UN-SPIDER Knowledge Portal.

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