GIS Digitizer, Rice Field Boundary Polygons

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🔥 0 minutes ago

🇰🇪 Kenya – Remote

⏳ Contract/Temporary

🟡 Mid-level

🟠 Senior

🗺️ GIS

👻 Ghost score 10%

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CIFOR-ICRAF

WebsiteLinkedInAll Job Openings

501 - 1000 employees

💼 Consulting

🏥 Healthcare

🌾 Agriculture

Consulting • Healthcare • Agriculture

CIFOR-ICRAF is a global organization focused on addressing critical challenges related to forests, trees, agroforestry, and sustainable natural resource management. By conducting innovative research and engaging with local and international partners, CIFOR-ICRAF aims to provide evidence-based solutions to issues such as biodiversity loss, climate change, food security, and equitable governance. Their work spans various regions including Africa, Asia, and Latin America, with an emphasis on enhancing people's livelihoods and promoting sustainable practices in landscape management.

📋 Description

• Develop an accurate, consistent, and quality-controlled geospatial database of rice field and plot boundaries within designated GCF Knuckles Project areas • Digitize individual rice fields and plot boundaries from designated reference imagery and datasets • Produce topologically correct and spatially accurate polygon datasets • Follow ICRAF digitization protocols and standardized attribute structures • Maintain consistency among multiple GIS operators • Prepare field-level spatial data for integration with the AgriLook platform and related applications • Review satellite imagery, Google Earth imagery, cadastral borders, and AI-survey area layers supplied by ICRAF • Digitize each distinct field as a closed polygon in the specified GIS format • Populate required polygon attributes • Cross-check boundaries against ground/field survey points where assigned • Submit digitized polygon batches according to the agreed schedule • Correct and resubmit polygons rejected during QA review at no additional cost • Maintain a digitization log covering area/tile, date, and number of polygons submitted • Apply digitization standards preventing overlaps, slivers, self-intersections, and duplicates • Complete automated geometry, topology, CRS/format, and attribute checks • Incorporate manual quality-review feedback and obtain QA sign-off before batches are accepted and payable

🎯 Requirements

• Qualified GIS digitizer • Ability to digitize rice fields and plot boundaries from high-resolution satellite imagery, basemaps, Google Earth imagery, cadastral borders, and AI-survey layers • Ability to produce topologically correct and spatially accurate polygon datasets • Ability to follow standardized digitization protocols, field delineation rules, topology rules, attribute structures, and project GIS standards • GIS proficiency with Shapefile, GeoJSON, and GeoPackage formats • Ability to populate required attributes, including field ID, administrative/GN division, land-use type, source imagery date, and digitizer ID/date • Ability to apply the specified coordinate reference system (CRS), such as WGS84 / SL national grid • Ability to perform geometry validity, topology, CRS/format, and attribute completeness checks • Ability to maintain digitization logs and submit batches through the designated platform/folder structure • Ability to cross-check boundaries against ground/field survey points where assigned • Ability to correct and resubmit non-conforming polygons • Ability to work according to the project's minimum mapping unit and positional accuracy tolerance

🏖️ Benefits

• Output-based payment model; batches are payable after QA sign-off and acceptance • Corrective resubmission of rejected polygons at no additional cost before payment acceptance