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1 Rebelo, Lisa-Maria. 2009. Characterisation of inland wetlands in Africa: Kyoto and Carbon Science Report - Phase 1. Tokyo, Japan: Japan Aerospace Exploration Agency (JAXA) 6p.

Wetlands ; Lakes ; Remote sensing ; Flooding ; Vegetation / Africa / Malawi / Mozambique / Lake Chilwa / Lake Urema

(Location: IWMI HQ Call no: e-copy only Record No: H042527)

http://www.eorc.jaxa.jp/ALOS/en/kyoto/phase_1/KC-Phase1-report_Rebelo.pdf
https://vlibrary.iwmi.org/pdf/H042527.pdf

(1.53 MB) (1.53MB)

Inland wetlands occur extensively across Sub-Saharan Africa. These ecosystems typically play a vital role in supporting rural populations and their sustainable management is thus critical. In order to prevent depletion of resources and ecosystem services provided by these wetlands, a balance is required between ecological and socio-economic factors. The sustainable management of wetlands requires information describing these ecosystems at multiple spatial and temporal scales. However, many southern and eastern African countries lack regional baseline information on the temporal extent, distribution and characteristics of wetlands. PALSAR data provides invaluable information related to the flooding patterns and vegetation characteristics of these wetlands, and is being used to document and characterise specific sites within the region which have been identified due to their vulnerability to both climatic variability and agricultural activities. The information derived from the PALSAR data is needed to assist managers in making decisions about future land uses in wetlands that are intensively used for agriculture and fisheries, and which are an important natural resource for local communities.

2 Rebelo, Lisa-Maria; Finlayson, M. 2010. Characterization of inland wetlands in Africa: K&C science report – phase 1. In Japan Aerospace Exploration Agency (JAXA), Earth Observation Research Center (EORC). The ALOS Kyoto & Carbon Initiative Science Team Reports, Phase 1 (2006-2008): wetlands theme reports. Tsukuba-shi, Japan: Japan Aerospace Exploration Agency (JAXA), Earth Observation Research Center (EORC) pp.140-146.

Wetlands ; Mapping ; Ecosystems ; Flooding ; Hydrology ; Vegetation ; Lakes ; Remote sensing / Africa / Malawi / Mozambique / Lake Chilwa / Lake Urema

(Location: IWMI HQ Call no: 333.91 G100 JAP Record No: H042473)

http://www.eorc.jaxa.jp/ALOS/kyoto/ref/KC_Phase-1_ScienceTeamReports_JAXA-EORC_NDX-100003.pdf
https://vlibrary.iwmi.org/pdf/H042473.pdf

(0.67 MB) (34.49 MB)

3 Rosenqvist, A.; Shimada, M. (Eds.) 2010. Global environmental monitoring by ALOS PALSAR: science results from the ALOS Kyoto and Carbon Initiative. Tsukuba, Ibaraki, Japan: Japan Aerospace Expoloration Agency. 87p.

Environmental monitoring ; Satellite imagery ; Forests ; Deforestation ; Mapping ; Watersheds ; Land cover mapping ; Deserts ; Wetlands ; Wildlife ; Nature conservation ; Habitats ; Flooding ; River basins ; Mangroves ; Peatlands ; Rice ; Climate change / Africa / Malawi / South Africa / Mozambique / USA / Brazil / Sweden / Canada / Australia / Asia / South East Asia / Borneo / Indonesia / Sumatra / Vietnam / Siberia / South East Asia / Amazon / Xingu Watershed / Greater Mekong Basin / Queensland / Nile River / Lake Urema / Congo River Basin / Sahara / Alaska

(Location: IWMI HQ Call no: e-copy only Record No: H043187)

http://www.eorc.jaxa.jp/ALOS/en/kyoto/ref/KC-Booklet_2010_comp.pdf
https://vlibrary.iwmi.org/pdf/H043187.pdf

(17.26 MB) (17.26 MB)

This booklet presents results obtained within the ALOS Kyoto & Carbon (K&C) Initiative. The Initiative builds on the experience gained from the JERS-1 Global Rain Forest and Boreal Forest Mapping (GRFM/GBFM) projects, in which SAR data from the JERS-1 satellite were used to generate image mosaics over the entire tropical and boreal zones of Earth. While the GRFM/GBFM projects were undertaken already in the mid 1990's, they demonstrated the utility of L-band SAR data for mapping and monitoring forest and wetland areas and the importance of providing spatially and temporally consistent satellite acquisitions for regional-scale monitoring and surveillance. The ALOS K&C Initiative is set out to suppor t data and information needs raised by international environmental Conventions, Carbon cycle science and Conservation of the environment. The project is led by JAXA EORC and supported by an international Science Team consisting of some 25 research groups from 14 countries. The objective of the ALOS K&C Initiative is to develop regional-scale applications and thematic products derived primarily from ALOS PALSAR data that can be used to meet the specific information requirements relating to Conventions, Carbon and Conservation. The Initiative is undertaken within the context of three themes which relate to three specific global biomes; Forests, Wetlands and Deserts. A fourth theme deals with the generation of continental-scale ALOS PALSAR image mosaics. Each theme has identified key products that are generated from the PALSAR data including land cover, forest cover and forest change maps, biomass and structure (Forests), wetlands inventory and change (Wetlands) and freshwater resources (Deserts). Each of these products are generated using a combination of PALSAR, in situ and ancillary datasets. The mosaic data sets and thematic products generated within the Initiative are available to the public at the K&C homepage at JAXA EORC: http://www.eorc.jaxa.jp/ALOS/en/kyoto/kyoto_index.html

4 Rebelo, Lisa-Maria. 2010. Mapping wetlands in Africa to improve understanding of wetland-livelihood interactions Lake Urema, Mozambique. In Rosenqvist, A.; Shimada, M. (Eds.). Global environmental monitoring by ALOS PALSAR: science results from the ALOS Kyoto and Carbon Initiative. Tsukuba, Ibaraki, Japan: Japan Aerospace Expoloration Agency. pp.60-61.

Wetlands ; Lakes ; Mapping ; Satellite imagery ; Ecosystems ; Floodplains / Africa / Mozambique / Lake Urema

(Location: IWMI HQ Call no: e-copy only Record No: H043189)

http://www.eorc.jaxa.jp/ALOS/en/kyoto/ref/KC-Booklet_2010_comp.pdf
https://vlibrary.iwmi.org/pdf/H043189.pdf

5 Rebelo, Lisa-Maria. 2010. Eco-hydrological characterization of inland wetlands in Africa using L-Band SAR. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 3(4):554-559. [doi: https://doi.org/10.1109/JSTARS.2010.2070060]

Ecology ; Hydrology ; Wetlands ; Ecosystems ; Remote sensing ; Maps ; Vegetation ; Monitoring / Africa / Africa South of Sahara / Malawi / Mozambique / Lake Chilwa / Lake Urema

(Location: IWMI HQ Record No: H043505)

https://vlibrary.iwmi.org/pdf/H043505.pdf

(1.22 MB)

Maps describing the eco-hydrology of inland wetland systems in Africa are needed to identify and implement appropriate adaptive management plans related to land use and land cover. Many African countries lack regional baseline information on the temporal extent, distribution and characteristics of wetlands. This information is provided here in the form of maps which characterize two wetland sites of international importance in Malawi and Mozambique. Multi-temporal L-band Synthetic Aperture Radar (SAR) datasets are combined with Landsat Thematic Mapper and ASTER images, digital elevation models, and vegetation species data to provide information on wetland ecology and hydrology. These data were used as input to a hybrid, Decision Tree classifier and a Principal Components Analysis classification approach to produce maps depicting the spatial distribution of vegetation species and characterizing the wetland dynamics. The maps exhibit classification accuracies of 89% and 84% for the two sites respectively. The L-band SAR datasets have proved to be an essential information source in the production of these maps due to i) frequent cloud cover/smoke which reduces the temporal coverage of optical data, and ii) a systematic observation strategy and frequent image acquisition which enables characterization of the flood dynamics at a high temporal resolution.