Results 1 - 10 of 17 (Sorted by date)
Policy Report

Starting in August 2019, the SWITCH Asia SCP Facility has provided technical support to Vietnam’s Ministry of Industry and Trade (MoIT) for development of the National Action Plan on Sustainable Consumption and Production (2021.2030) (NAP on SCP). The SCP Facility established a team of international and national experts to conduct an assessment on...

Peer-reviewed Article
In Applied Geography
Author:
Kotaro
IIZUKA

We use crowdsourced GIS data from OpenStreetMap to help automate the mapping of land cover in Landsat satellite imagery. The OpenStreetMap data had limited area coverage, but was useful for building a model which could classify land cover in the other areas.

Data or Tool
Author:
MAGCALE-MACANDOG Damasa B.
Milben
BRAGAIS
MACANDOG Paula Beatrice M.

We analyzed the change in vegetated and urban (impervious) area in the Silang-Santa Rosa sub-watershed of the Philippines to assess the implications related to flood risk. Our main findings were:

-The impervious area of sub-watershed increased by 54% (from 3,239 ha. to 4,988 ha.).
-The vegetated area decreased by 21% (from 8,509 ha. to 6,760 ha)....

Data or Tool
Author:
Kotaro
IIZUKA

This dataset can be used by researchers to test different land use/land cover mapping methods using crowdsourced geographic data and Landsat satellite imagery. The study area is the Laguna de Bay area of the Philippines, and the satellite data is from 2014-2015. This dataset will also be available on the "UCI Machine Learning Repository" (https:/...

Peer-reviewed Article
In ISPRS International Journal of Geo-Information
Author:
Milben
BRAGAIS
MAGCALE-MACANDOG Damasa
MACANDOG Paula Beatrice

We developed a method for mapping residential areas using freely available satellite imagery. The resultant residential area map can be used for risk assessment (e.g. to estimate the population living in a flood-prone area). Our method can be applied for flood risk assessment in other watersheds in the future.

Presentation
The 18th Symposium on Environmental Remote Sensing (in Chiba City, Japan)
Author:
Kotaro
IIZUKA
MAGCALE-MACANDOG Damasa B.
Milben
BRAGAIS

We developed a fast method for land cover mapping using satellite imagery and crowdsourced geographic data (land use polygon data). The method is less time- and labor-intensive than traditional land cover mapping methods because the crowdsourced data substitutes for training data collected the traditional way (through field survey or visual image...

Peer-reviewed Article
In Applied Geography

This study provides a computationally-simple method to annually update existing national forest maps and model future forest change. It involves integrating national forest maps and global tree cover maps to monitor annual forest change, and then modeling future change by linear extrapolation of the historical trend.

Peer-reviewed Article
In ISPRS International Journal of Geo-Information

A new method was developed for mapping forest, agricultural, and urban land cover using remote sensing imagery. It is designed to better detect small land cover objects (e.g. small forest or agricultural patches) and monitor their change (e.g. fine-scale deforestation) using freely-available satellite imagery.

Peer-reviewed Article
In ISPRS International Journal of Geo-Information

This study evaluated the effects of image pansharpening on Vegetation Indices (VIs) in an agricultural area of Thailand, and found that pansharpening was able to downscale single-date and multi-temporal VI data without introducing significant distortions. The downscaled (15m resolution) VI values can be used for estimating above-ground biomass...