Brazilian Amazon land mapping project: Status and perspectives

Castro-Filho, Carlos Alberto Pires de; Rosa, Rafael Antonio da Silva

doi:10.1109/igarss.2017.8127603

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…For consistency, the DTM vertical reference was transformed from MAPGEO2010 (Matos et al, 2012) to EGM08. The DTM was developed using P-band interferometry from an aerial survey conducted in late 2014 and early 2015 (De Castro-Filho and Antonio Da Silva Rosa, 2017) in the context of the Base Cartográfica Continua do Amapá project (Vieira, 2015) in cooperation with Governo do Estado do Amapá and Exército Brasileiro (GEA/EB).…”

Section: In Situ and Spaceborne Data For Validation 231 Governo Do Estado Do Amapá And Exércitomentioning

confidence: 99%

Comprehensive bathymetry and intertidal topography of the Amazon estuary

Fassoni‐Andrade

Durand

Moreira

et al. 2021

Earth Syst. Sci. Data

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Abstract. The characterization of estuarine hydrodynamics primarily depends on knowledge of the bathymetry and topography. Here, we present the first comprehensive, high-resolution dataset of the topography and bathymetry of the Amazon River estuary, the world's largest estuary. Our product is based on an innovative approach combining spaceborne remote sensing data, an extensive and processed river depth dataset, and auxiliary data. Our goal with this mapping is to promote the database usage in studies that require this information, such as hydrodynamic modeling or geomorphological assessments. Our twofold approach considered 500 000 sounding points digitized from 19 nautical charts for bathymetry estimation, in conjunction with a state-of-the-art topographic dataset based on remote sensing, encompassing intertidal flats, riverbanks, and adjacent floodplains. Finally, our estimate can be accessed in a unified 30 m resolution regular grid referenced to the Earth Gravitational Model 2008 (EGM08), complemented both landward and seaward by land (Multi-Error-Removed Improved-Terrain digital elevation model, MERIT DEM) and ocean (General Bathymetric Chart of the Oceans version 2020, GEBCO_2020) topographic data. Extensive validation against independent and spatially distributed data, from an airborne lidar survey, from ICESat-2 altimetric satellite data, and from various in situ surveys, shows a typical vertical accuracy of 7.2 m (riverbed) and 1.2 m (non-vegetated intertidal floodplains). The dataset is available at https://doi.org/10.17632/3g6b5ynrdb.2 (Fassoni-Andrade et al., 2021).

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Section: In Situ and Spaceborne Data For Validation 231 Governo Do Estado Do Amapá And Exércitomentioning

confidence: 99%

Comprehensive bathymetry and intertidal topography of the Amazon estuary

Fassoni‐Andrade

Durand

Moreira

et al. 2021

Earth Syst. Sci. Data

View full text Add to dashboard Cite

show abstract

Section: In Situ and Spaceborne Data For Validation 231 Governo Do Estado Do Amapá And Exércitomentioning

confidence: 99%

Comprehensive bathymetry and intertidal topography of the Amazon estuary

Fassoni‐Andrade¹,

Durand²,

Moreira³

et al. 2021

Preprint

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Abstract. The characterization of estuarine hydrodynamics primarily depends on the knowledge of bathymetry and topography. Here we present the first comprehensive, high-resolution dataset of the topography and bathymetry of the Amazon River estuary, the world's largest estuary. Our product is based on an innovative approach combining space-borne remote sensing data, an extensive and processed river depth dataset, and auxiliary data. Our goal with this characterization is to promote the database usage in studies that require this information, such as hydrodynamic modeling or geomorphological assessments. Our twofold approach considered 500'000 sounding points digitized from 19 nautical charts for bathymetry estimation, in conjunction with a state-of-the-art topography dataset based on remote sensing, encompassing intertidal flats, riverbanks, and adjacent floodplains. Finally, our estimate can be accessed in a unified 30 m resolution regular grid referenced to EGM08, complemented both landward and seaward with land (MERIT DEM) and ocean (GEBCO2020) topography data. Extensive validation against independent and spatially-distributed data, from an airborne LIDAR survey, from ICESat-2 altimetric satellite data, and from various in situ surveys, shows a typical accuracy of 8.4 m (river bed) and 1.2 m (non-vegetated inter-tidal floodplains). The dataset is available at http://dx.doi.org/10.17632/3g6b5ynrdb.1 (Fassoni-Andrade et al., 2021).

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“…CC BY 4.0 License. was developed using P-band interferometry from an aerial survey conducted in late 2014 and early 2015(De Castro-Filho and Antonio Da Silva Rosa, 2017) in the context of the Base Cartográfica Continua do Amapá project…”

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confidence: 99%

Comment on essd-2021-32

Ligi¹

2021

View full text Add to dashboard Cite

The characterization of estuarine hydrodynamics primarily depends on the knowledge of bathymetry and topography. Here we present the first comprehensive, high-resolution dataset of the topography and bathymetry of the Amazon River estuary, the world's largest estuary. Our product is based on an innovative approach combining space-borne remote sensing data, an extensive and processed river depth dataset, and auxiliary data. Our goal with this characterization is to promote the database usage in studies that require this information, such as hydrodynamic modeling or geomorphological assessments. Our twofold approach considered 500'000 sounding points digitized from 19 nautical charts for bathymetry estimation, in conjunction with a state-of-the-art topography dataset based on remote sensing, encompassing intertidal flats, riverbanks, and adjacent floodplains. Finally, our estimate can be accessed in a unified 30 m resolution regular grid referenced to EGM08, complemented both landward and seaward with land (MERIT DEM) and ocean (GEBCO2020) topography data. Extensive validation against independent and spatially-distributed data, from an airborne LIDAR survey, from ICESat-2 altimetric satellite data, and from various in situ surveys, shows a typical accuracy of 8.4 m (river bed) and 1.2 m (non-vegetated inter-tidal floodplains). The dataset is available at http://dx.doi.org/10.17632/3g6b5ynrdb.1 (Fassoni-Andrade et al., 2021). IntroductionThe Amazon River exports the largest discharge of freshwater (205'000 m 3 s -1 ; Callède et al., 2010) and the largest sedimentary supply (5-13 10 8 tons per year; Filizola et al., 2011) to the global ocean. However, there does not exist, up to now, any consistent, comprehensive, publicly available topographic dataset in the estuary that can support hydrodynamic, sedimentary, or ecological studies. The largest estuary in the world is home to energetic exchanges of momentum between the upstream river and the ocean, with a marked variability of the water level over a broad range of timescales, from the

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Brazilian Amazon land mapping project: Status and perspectives

Cited by 4 publications

References 5 publications

Comprehensive bathymetry and intertidal topography of the Amazon estuary

Comprehensive bathymetry and intertidal topography of the Amazon estuary

Comprehensive bathymetry and intertidal topography of the Amazon estuary

Comment on essd-2021-32

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