Sinkhole Monitoring and Early Warning Detection in the Karst Landscapes of Guimaras Island, Philippines Using Interferometric Synthetic Aperture Radar (InSAR) Satellite Data

Aporto, Laurelly Joyce A.; Mabaquiao, Luis Carlo S.; Garcia, Leonardo Miguel; Maralit, Pia Franchesca R.; Ugalino Jr., Mario G.; Aguilan, Kim Elijah M.; Casisirano, Jarence David D.; Florin, Albert Francis P.; Tablang, Karlo Mark C.; Pamittan, Fatima Joy O.; Fargas Jr., Dominic C.; Sarmiento, Czar Jakiri S.

doi:10.5194/isprs-annals-X-5-W4-2025-43-2026

Urban Mobility Insights from CCTV: A Deep Learning Approach to Traffic Flow Monitoring

Mario G. Ugalino Jr., Albert Francis P. Florin, Ma. Bea Angela I. Zamora, Laurelly Joyce A. Aporto, Leonardo Miguel Garcia, Pia Franchesca R. Maralit, Kim Elijah M. Aguilan, Jarence David D. Casisirano, Karlo Mark C. Tablang, Fatima Joy O. Pamittan, Dominic C. Fargas Jr., and Czar Jakiri S. Sarmiento

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVIII-5-W4-2025, 237–244, https://doi.org/10.5194/isprs-archives-XLVIII-5-W4-2025-237-2026,https://doi.org/10.5194/isprs-archives-XLVIII-5-W4-2025-237-2026, 2026

Modeling Land Surface Temperature (LST) and Surface Urban Heat Islands (SUHI) in Taguig City (Philippines) using Material Distribution Derived from Linear Spectral Unmixing of PRISMA Hyperspectral Data

Kim Elijah M. Aguilan, Dave Liam T. Ngo, Ariel C. Blanco, and Erica Erin E. Elazegui

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., X-5-W4-2025, 11–18, https://doi.org/10.5194/isprs-annals-X-5-W4-2025-11-2026,https://doi.org/10.5194/isprs-annals-X-5-W4-2025-11-2026, 2026

Geospatial Analysis of Emergency Incidents and Disaster Response Management in Oton, Iloilo

Laurelly Joyce A. Aporto, Jarence David D. Casisirano, Leonardo Miguel Garcia, Pia Franchesca R. Maralit, Mario G. Ugalino Jr., Kim Elijah M. Aguilan, Albert Francis P. Florin, Karlo Mark C. Tablang, Fatima Joy O. Pamittan, Dominic C. Fargas Jr., and Czar Jakiri S. Sarmiento

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., X-5-W4-2025, 35–42, https://doi.org/10.5194/isprs-annals-X-5-W4-2025-35-2026,https://doi.org/10.5194/isprs-annals-X-5-W4-2025-35-2026, 2026

Spatiotemporal Analysis of Inundated Areas in San Miguel, Bulacan using Sentinel-1 and Sentinel-2 Imagery

Janna Jewel A. Cardiño, Renz Louie I. Puertollano, Jeark A. Principe, and Czar Jakiri S. Sarmiento

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., X-5-W4-2025, 119–126, https://doi.org/10.5194/isprs-annals-X-5-W4-2025-119-2026,https://doi.org/10.5194/isprs-annals-X-5-W4-2025-119-2026, 2026

Comparative Analysis of UAV Photogrammetry and Terrestrial Laser Scanning for 3D Building Reconstruction

Jarence David D. Casisirano and Alexis Richard C. Claridades

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., X-5-W4-2025, 143–150, https://doi.org/10.5194/isprs-annals-X-5-W4-2025-143-2026,https://doi.org/10.5194/isprs-annals-X-5-W4-2025-143-2026, 2026

Extending CityGML for Urban Solar Potential Estimation: A Semantically Enriched Model Informed by UAV-Derived Analysis

Jarence David D. Casisirano and Alexis Richard C. Claridades

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., X-5-W4-2025, 151–158, https://doi.org/10.5194/isprs-annals-X-5-W4-2025-151-2026,https://doi.org/10.5194/isprs-annals-X-5-W4-2025-151-2026, 2026

GNSS Interferometric Reflectometry (GNSS-IR) Tidal Monitoring in Limay, Bataan with Analysis of Antenna Orientation and GNSS Signal Variability

Leila Micahella D. Cruz, Jasper B. Molleno, and Luis Carlos S. Mabaquiao

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., X-5-W4-2025, 173–180, https://doi.org/10.5194/isprs-annals-X-5-W4-2025-173-2026,https://doi.org/10.5194/isprs-annals-X-5-W4-2025-173-2026, 2026

Assessment of Potential GNSS-IR Sites in Existing Tide Gauge Sites in the Philippines

Leila Micahella D. Cruz, Jasper B. Molleno, Luis Carlos S. Mabaquiao, Rosalie B. Reyes, John Dave C. Maclang, Dave Liam T. Ngo, John Michael Rey A. Zamora, Alexi Mae Y. Narca, Hanna Mae M. Garcia, Dennis Arsenio Bringas, Shelmark Penaranda, Beaverlex Algaba, and Joshua Venerable

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., X-5-W4-2025, 181–188, https://doi.org/10.5194/isprs-annals-X-5-W4-2025-181-2026,https://doi.org/10.5194/isprs-annals-X-5-W4-2025-181-2026, 2026

Mapping of Potential Alteration Zones for Mineralization Prospects Using Remotely Sensed Data: Case of Mankayan Mineral District, Benguet in Cordillera Administrative Region (CAR), Philippines

Carleen Joy T. Gatdula, Aeron Elvin C. Dela Cruz, Jeark A Principe, Czar Jakiri S. Sarmiento, and Karlo L. Queaño

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., X-5-W4-2025, 269–276, https://doi.org/10.5194/isprs-annals-X-5-W4-2025-269-2026,https://doi.org/10.5194/isprs-annals-X-5-W4-2025-269-2026, 2026

Correlation of Land Subsidence with Groundwater Extraction and Urbanization in Hagonoy and Calumpit, Bulacan from 2015 to 2021-Q1

John Dave C. Maclang, Alexi Mae Y. Narca, Rosalie B. Reyes, and Luis Carlos S. Mabaquiao

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., X-5-W4-2025, 307–314, https://doi.org/10.5194/isprs-annals-X-5-W4-2025-307-2026,https://doi.org/10.5194/isprs-annals-X-5-W4-2025-307-2026, 2026

Cities’ Dashboards as Civic Technology Platforms: A Scalable Model for Smart Cities through Integrated Governance in LUNGSOD, SMART METRO, and FASTRAC

Alexis Richard C. Claridades, Jarence David D. Casisirano, Dominic C. Fargas Jr., Mylene V. Jerez, Gwyneth Anjelika D. Rufino, Fatima Joy O. Pamittan, Leonardo Miguel Garcia, and Czar Jakiri S. Sarmiento

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., X-4-W7-2025, 17–24, https://doi.org/10.5194/isprs-annals-X-4-W7-2025-17-2025,https://doi.org/10.5194/isprs-annals-X-4-W7-2025-17-2025, 2025

A Localized GIS-Based Multi Decision Criteria Approach in Determining Suitable Sites for Community Toilet Facilities in BASECO Compound, Manila City

Nerissa Pangilinan, Jan Recca Bautista, Luis Carlos Mabaquiao, and Karl Adrian Vergara

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVIII-5-2024, 75–81, https://doi.org/10.5194/isprs-archives-XLVIII-5-2024-75-2024,https://doi.org/10.5194/isprs-archives-XLVIII-5-2024-75-2024, 2024

Estimating Cooling Energy Demand from Building Attributes and Environmental Parameters using 3D City Models

Justine Anne Duka, John Lester Traen, Czar Jakiri Sarmiento, and Jeark Principe

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., X-5-2024, 63–70, https://doi.org/10.5194/isprs-annals-X-5-2024-63-2024,https://doi.org/10.5194/isprs-annals-X-5-2024-63-2024, 2024

Validating The Philippine Mangrove Map 2023 through Capacity Building and Crowdsourcing

Cristan Dave Chan Zablan, Kristine Muarip Bantay, Ariel C. Blanco, Agatha Maxine Bedi, Dominic Cabanlit Fargas Jr., and Christian Gumbao Candido

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., X-5-2024, 243–250, https://doi.org/10.5194/isprs-annals-X-5-2024-243-2024,https://doi.org/10.5194/isprs-annals-X-5-2024-243-2024, 2024

SPACE+ DATA DASHBOARD: EMPOWERING INSTITUTIONS AND CITIZENS WITH SEAMLESS SPACE DATA ACCESS

D. C. Fargas Jr., R. M. de la Cruz, and A. C. Blanco

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVIII-4-W8-2023, 219–225, https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-219-2024,https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-219-2024, 2024

FEASIBILITY STUDY OF GNSS-ENABLED GCP MARKER FOR CONTROL ESTABLISHMENT FOR DRONE SURVEYING

A. F. P. Florin, M. J. S. Gomez, L. C. S. Mabaquiao, and R. V. Ramos

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVIII-4-W8-2023, 227–233, https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-227-2024,https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-227-2024, 2024

ACCURACY ASSESSMENT OF A SLAM-ACQUIRED POINT CLOUD DATA USING A VARIETY OF CLASSIFICATION APPLICATIONS

H. A. Ingles, A. M. M. Legaspi, C. J. S. Sarmiento, and A. R. C. Claridades

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVIII-4-W8-2023, 307–312, https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-307-2024,https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-307-2024, 2024

GROUND DEFORMATION MONITORING OF RECLAIMED LANDS ALONG MANILA BAY FREEPORT ZONE USING PS-INSAR TECHNIQUE

A. L. Lomibao, G. A. Leal, L. C. Mabaquiao, and R. B. Reyes

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVIII-4-W8-2023, 335–342, https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-335-2024,https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-335-2024, 2024

PERFORMANCE EVALUATION OF TEMPORAL MODEL AND SPATIAL CORRELATION METHODS FOR PERSISTENT SCATTERER DETERMINATION IN LANDSLIDE PRONE AREAS

L. C. Mabaquiao

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVIII-4-W8-2023, 343–349, https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-343-2024,https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-343-2024, 2024

TYPHOON KARDING (NORU) STORM SURGE ANALYSIS USING THE COAWST MODELING SYSTEM

L. I. J. Nioko, K. M. C. Tablang, A. M. Tamondong, M. R. C. O. Ang, and D. M. Bautista

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVIII-4-W8-2023, 403–410, https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-403-2024,https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-403-2024, 2024

TIME-SERIES ANALYSIS OF SATELLITE-BASED TRACE GASES CONCENTRATIONS IN PORT AREAS IN THE PHILIPPINES USING SENTINEL-5P

L. A. Aporto, M. Latunio, R. V. Ramos, and A. M. Tamondong

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVIII-4-W8-2023, 9–16, https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-9-2024,https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-9-2024, 2024

COMPARATIVE ANALYSIS OF LOW-COST CONSUMER-GRADE AND COMMERCIAL-GRADE DRONES FOR LAND SURVEYING APPLICATIONS

P. C. Barbosa, D. C. Fargas Jr., and G. A. M. Narciso

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVIII-4-W8-2023, 31–37, https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-31-2024,https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-31-2024, 2024

3D RECONSTRUCTION OF THE FORT SANTIAGO DUNGEONS USING HANDHELD LASER SCANNING METHOD

P. L. Borrega, Y. A. Felisilda, C. J. Sarmiento, and A. Tamondong

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVIII-4-W8-2023, 69–75, https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-69-2024,https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-69-2024, 2024

REAL-TIME WATER LEVEL MONITORING USING LOW-COST GNSS RECEIVER

R. D. Dizon, J. J. Peñales, R. B. Reyes, and L. C. Mabaquiao

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVIII-4-W8-2023, 189–194, https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-189-2024,https://doi.org/10.5194/isprs-archives-XLVIII-4-W8-2023-189-2024, 2024

SUITABILITY ANALYSIS FOR URBAN BICYCLE TOURISM OF ILOILO CITY USING GIS

D. C. Fargas Jr., A. D. Gregorio, and M. D. Endaya

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVIII-4-W9-2024, 157–163, https://doi.org/10.5194/isprs-archives-XLVIII-4-W9-2024-157-2024,https://doi.org/10.5194/isprs-archives-XLVIII-4-W9-2024-157-2024, 2024

SEMI-AUTOMATIC GENERATION OF AN LOD1 AND LOD2 3D CITY MODEL OF TANAUAN CITY, BATANGAS USING OPENSTREETMAP AND TAAL OPEN LIDAR DATA IN QGIS

P. H. T. Camacho, V. M. R. Santiago, and C. J. S. Sarmiento

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-4-W6-2021, 77–84, https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-77-2021,https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-77-2021, 2021

INVESTIGATION OF BLUETOOTH LOW ENERGY (BLE) AND WIRELESS LOCAL AREA NETWORK (WLAN)-DERIVED DISTANCE MEASUREMENTS USING MOBILE PHONES FOR INDOOR POSITIONING

K. M. K. Daray, P. A. G. Todoc, and C. J. S. Sarmiento

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-4-W6-2021, 117–124, https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-117-2021,https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-117-2021, 2021

A FRAMEWORK IN DEVELOPING A CITIZEN-CENTERED SMART CITY MOBILE APPLICATION AS A PLATFORM FOR DIGITAL PARTICIPATION IN ILOILO CITY

J. Domingo, K. A. Cabello, G. A. Rufino, L. Hilario, M. J. Villanueva-Jerez, and C. J. Sarmiento

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-4-W6-2021, 153–160, https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-153-2021,https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-153-2021, 2021

DEVELOPMENT OF THE IM4MANILABAY MAPABLE WEB PORTAL

N. B. Gatdula, B. J. D. Jiao, J. A. Laurente, A. C. Blanco, J. M. Medina, D. Fargas, and G. A. Narciso

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-4-W6-2021, 169–176, https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-169-2021,https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-169-2021, 2021

FORECASTING URBAN POPULATION DISTRIBUTION OF ILOILO CITY USING GIS AND SPATIAL AUTOCORRELATION MODELS

L. Hilario, J. A. Duka, M. I. Mabalot, J. Domingo, K. A. Vergara, M. J. Villanueva-Jerez, K. A. Cabello, G. A. Rufino, and C. J. Sarmiento

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-4-W6-2021, 185–192, https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-185-2021,https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-185-2021, 2021

INSAR-BASED LOS SURFACE DEFORMATION COMPARISON OF METRO MANILA BEFORE AND AFTER THE JANUARY 2020 TAAL VOLCANO ERUPTION

L. C. Mabaquiao

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-4-W6-2021, 201–206, https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-201-2021,https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-201-2021, 2021

ASHFALL DISPERSAL MAPPING OF THE 2020 TAAL VOLCANO ERUPTION USING DIWATA-2 IMAGERY FOR DISASTER ASSESSMENT

E. J. G. Merin, A. L. F. Yute, C. J. S. Sarmiento, and E. E. Elazagui

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-4-W6-2021, 221–226, https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-221-2021,https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-221-2021, 2021

DEVELOPMENT OF THE MASDAN MOBILE APPLICATION AND WEB-BASED GIS INTERFACE FOR THE MONITORING AND MANAGEMENT OF THE MANILA BAY ENVIRONMENT

G. A. M. Narciso, D. C. Fargas Jr., C. G. Candido, J. M. Medina, M. L. P. Tinio, and A. C. Blanco

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-4-W6-2021, 227–234, https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-227-2021,https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-227-2021, 2021

DEVELOPMENT OF A DIGITAL TWIN FOR THE MONITORING OF SMART CITIES USING OPEN-SOURCE SOFTWARE

R. R. Sta. Ana, J. E. Escoto, D. Fargas Jr., K. Panlilio, M. Jerez, and C. J. Sarmiento

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-4-W6-2021, 281–288, https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-281-2021,https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-281-2021, 2021

SUPPLEMENTING SATELLITE IMAGERY WITH SOCIAL MEDIA DATA FOR REMOTE RECONNAISSANCE: A CASE STUDY OF THE 2020 TAAL VOLCANO ERUPTION

A. L. F. Yute, E. J. G. Merin, C. J. S. Sarmiento, and E. E. Elazagui

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-4-W6-2021, 329–335, https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-329-2021,https://doi.org/10.5194/isprs-archives-XLVI-4-W6-2021-329-2021, 2021

MONITORING AND ASSESSMENT OF AGRI-URBAN LAND CONVERSION USING MULTI-SENSOR REMOTE SENSING AND GIS TECHNIQUES

D. C. Fargas Jr., G. A. M. Narciso, and A. C. Blanco

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., V-3-2021, 117–124, https://doi.org/10.5194/isprs-annals-V-3-2021-117-2021,https://doi.org/10.5194/isprs-annals-V-3-2021-117-2021, 2021

Sinkhole Monitoring and Early Warning Detection in the Karst Landscapes of Guimaras Island, Philippines Using Interferometric Synthetic Aperture Radar (InSAR) Satellite Data

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