Dialogue Science-Decision-Makers for the Integrated Management of the Coastal and Marine Environment

Integrate scientific knowledge into decision-making for coastal and marine management in the Western Indian Ocean (Comoros, Kenya, Madagascar, Mauritius, Mozambique, Seychelles, Tanzania), 2021-2024
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DIDEM_Betsiboka_Delta_01_README.txt
Feb 16, 2024 - Identification, localization and numbering of islets and geomorphological units of the Betsiboka delta (northwestern Madagascar) on Sentinel 2 satellite images (2020, 2021)
Plain Text - 3.4 KB - MD5: 9a7d68f27f682bf455db7d40d882d817
Documentation
Dataset description
DIDEM_Betsiboka_Delta_02_Authors_Contributions_EN.pdf
DIDEM_Betsiboka_Delta_02_Authors_Contributions_EN.pdf
Feb 16, 2024 - Identification, localization and numbering of islets and geomorphological units of the Betsiboka delta (northwestern Madagascar) on Sentinel 2 satellite images (2020, 2021)
Adobe PDF - 113.2 KB - MD5: 02aff060eb26f7f5d00b10a2ab403395
Documentation
Co-author contribution details.
DIDEM_Betsiboka_Delta_03_Downstream_LongLimit_1.pdf
DIDEM_Betsiboka_Delta_03_Downstream_LongLimit_1.pdf
Feb 16, 2024 - Identification, localization and numbering of islets and geomorphological units of the Betsiboka delta (northwestern Madagascar) on Sentinel 2 satellite images (2020, 2021)
Adobe PDF - 334.6 KB - MD5: d3fbb51a793a835071ea7029f837706e
Data
Detail of the downstream limit of the Betsiboka delta, between Boanamary in the right bank and a river in the left bank.
DIDEM_Betsiboka_Delta_04_LargeLimit_2.pdf
DIDEM_Betsiboka_Delta_04_LargeLimit_2.pdf
Feb 16, 2024 - Identification, localization and numbering of islets and geomorphological units of the Betsiboka delta (northwestern Madagascar) on Sentinel 2 satellite images (2020, 2021)
Adobe PDF - 518.1 KB - MD5: da1207c2d5b47c908f6df6b64467b70e
Data
Large limits of the delta are defined by the extension of mangrove soils in green (ORSTOM, 1952) and the maximum extension of flooded area in red (flooded area in 2015-2016 by Catry et al., 2017).
DIDEM_Betsiboka_Delta_05_Limits_3.jpg
DIDEM_Betsiboka_Delta_05_Limits_3.jpg
Feb 16, 2024 - Identification, localization and numbering of islets and geomorphological units of the Betsiboka delta (northwestern Madagascar) on Sentinel 2 satellite images (2020, 2021)
JPEG Image - 1.9 MB - MD5: db9dca815b111a010f1be6b12641f547
Data
The definitive limits of the delta are defined by the downstream long limit (Boanamary), the upstream first right channel, and the large limits defined according to mangrove and flooded area.
DIDEM_Betsiboka_Delta_06_Axis_Equidistants_1.jpg
DIDEM_Betsiboka_Delta_06_Axis_Equidistants_1.jpg
Feb 16, 2024 - Identification, localization and numbering of islets and geomorphological units of the Betsiboka delta (northwestern Madagascar) on Sentinel 2 satellite images (2020, 2021)
JPEG Image - 5.1 MB - MD5: 6e41def3b96fd79929ad9af5412a2a23
Data
Course of the main axis of the Betsiboka river in its delta, with equidistants points (Sentinel 2, 2021).
DIDEM_Betsiboka_Delta_07_Transects_2.jpg
DIDEM_Betsiboka_Delta_07_Transects_2.jpg
Feb 16, 2024 - Identification, localization and numbering of islets and geomorphological units of the Betsiboka delta (northwestern Madagascar) on Sentinel 2 satellite images (2020, 2021)
JPEG Image - 5.2 MB - MD5: 88053ffaa04bb1f71d70f7521415ac0a
Data
13 equidistants transects in the Betsiboka delta (Sentinel 2, 2021).
DIDEM_Betsiboka_Delta_08_Up-Mid-Down-Stream_3.jpg
DIDEM_Betsiboka_Delta_08_Up-Mid-Down-Stream_3.jpg
Feb 16, 2024 - Identification, localization and numbering of islets and geomorphological units of the Betsiboka delta (northwestern Madagascar) on Sentinel 2 satellite images (2020, 2021)
JPEG Image - 5.1 MB - MD5: 1a8eac1fa3f75d5476ed8c2b6edce607
Data
13 transects in the Betsiboka delta, grouped in Upstream, Midstream and Downstream sections (Sentinel 2, 2021).
DIDEM_Betsiboka_Delta_09_GeoUnits_2020_1.pdf
DIDEM_Betsiboka_Delta_09_GeoUnits_2020_1.pdf
Feb 16, 2024 - Identification, localization and numbering of islets and geomorphological units of the Betsiboka delta (northwestern Madagascar) on Sentinel 2 satellite images (2020, 2021)
Adobe PDF - 6.3 MB - MD5: 04339555c4fa22f542e1e4da23c61e00
Data
Grid with 4km by 4 km boxes applied on the Betsiboka delta, numbered to enable localization of the 186 geomorphological units identified in the Sentinel 2 image of 2020 (dry period, low tide).
DIDEM_Betsiboka_Delta_10_GeoUnits_2021.pdf
DIDEM_Betsiboka_Delta_10_GeoUnits_2021.pdf
Feb 16, 2024 - Identification, localization and numbering of islets and geomorphological units of the Betsiboka delta (northwestern Madagascar) on Sentinel 2 satellite images (2020, 2021)
Adobe PDF - 24.0 MB - MD5: 8cb57dcd530622dc755a1d85cc0c2356
Data
Final map of numbered islets (Sentinel 2 image April 28, 2021 at low tide -1.86).
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