ACHARYA T., SUBEDI A., LEE D. 2018. Evaluation of water indices for surface water extraction in a Landsat 8 scene of Nepal. Sensors. Vol. 18, 2580. DOI
10.3390/s18082580.
AMANI M., GHORBANIAN A., AHMADI S.A., KAKOOEI M., MOGHIMI A., MIRMAZLOUMI S.M., ..., BRISCO B. 2020. Google Earth Engine Cloud Computing Platform for remote sensing big data applications: A comprehensive review. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. Vol. 13 p. 5326–5350. DOI
10.1109/JSTARS.2020.3021052.
BOLANOS S., STIFF D., BRISCO B., PIETRONIRO A. 2016. Operational surface water detection and monitoring using Radarsat 2. Remote Sensing. Vol. 8, 285. DOI
10.3390/rs8040285.
BUMA W., LEE S.-I., SEO J. 2018. Recent surface water extent of Lake Chad from multispectral sensors and GRACE. Sensors. Vol. 18, 2082. DOI
10.3390/s18072082.
CHEN Z., YANG G. 2013. Analysis of drought hazards in North China: Distribution and interpretation. Natural Hazards. Vol. 65 p. 279– 294. DOI
10.1007/s11069-012-0358-3.
CLINTON N. 2017. Otsu’s method for image segmentation [online]. [Access 28.07.2020]. Available at:
https://medium.com/google-earth/otsus-method-for-image-segmentation-f5c48f405e DINKA M.O., CHAKA D.D. 2019. Analysis of land use/land cover change in Adei watershed, Central Highlands of Ethiopia. Journal of Water and Land Development. No. 41 (IV–VI) p. 146–153. DOI
10.2478/jwld-2019-0038.
DU Y., ZHANG Y., LING F., WANG Q., LI W., LI X. 2016. Water bodies’ mapping from Sentinel-2 imagery with modified Normalized Difference Water Index at 10-m spatial resolution produced by sharpening the SWIR band. Remote Sensing. Vol. 8. Iss. 4, 354 p. 1–19. DOI
10.3390/rs8040354.
ERAKU S., AKASE N., KOEM S. 2019. Analyzing Limboto Lake inundation area using Landsat 8 OLI imagery and rainfall data. Journal of Physics: Conference Series. Vol. 1317, 012111. DOI
10.1088/1742-6596/1317/1/012111.
Google Earth Engine 2020. NDVI, mapping a function over a collection, quality mosaicking [online]. [Access 02.08.2020]. Available at:
https://developers.google.com/earth-engine/tutorials/tutorial _api_06. GORELICK N., HANCHER M., DIXON M., ILYUSHCHENKO S., THAU D., MOORE R. 2017. Google Earth Engine: Planetary-scale geospatial analysis for everyone. Remote Sensing of Environment. Vol. 202 p. 18–27. DOI
10.1016/j.rse.2017.06.031.
HAMZAH R., MATSUSHITA B., TAKEHIKO F. 2018. Long-term monitoring of lake surface area change in Indonesia from global surface water data [online]. In: 17th World Lake Conference. Ibaraki, Japan p. 600–602. [Access 02.08.2020]. Available at:
https://www.pref.ibarakijp/soshiki/seikatsukankyo/kasumigauraesc/04_ken- kyu/kaigi/docments/kosyou/17/ronbun/WLC17procidings_O6 _14.pdf HARDY A., ETTRITCH G., CROSS D.E., BUNTING P., LIYWALII F., SAKALA J., SILUMESII A., SINGINI D., SMITH M., WILLIS T., THOMAS C.J. 2019. Automatic detection of open and vegetated water bodies using Sentinel 1 to map African malaria vector mosquito breeding habitats. Remote Sensing. Vol. 11, 593. DOI
10.3390/rs11050593.
HUANG C., CHEN Y., ZHANG S., WU J. 2018. Detecting, extracting, and monitoring surface water from space using optical sensors: A review. Reviews of Geophysics. Vol. 56 p. 333–360. DOI
10.1029/2018RG000598.
JASKUŁA J., SOJKA M.. 2019. Assessing spectral indices for detecting vegetative overgrowth of reservoirs. Polish Journal of Environ- mental Studies. Vol. 28. No. 6 p. 4199–4211. DOI
10.15244/pjoes/ 98994.
JIANG H., FENG M., ZHU Y., LU N., HUANG J., XIAO T. 2014. An automated method for extracting rivers and lakes from Landsat imagery. Remote Sensing. Vol. 6. Iss. 6 p. 5067–5089. DOI
10.3390/rs6065067.
JICA 2002. The study on flood control and water management Limboto-Bolango-Bone Basin in The Republic of Indonesia [online]. Final report. Vol. 1. Summary. Japan International Cooperation Agency. [Access 02.08.2020]. Available at:
https://openjicareport.jica.go.jp/pdf/11709730_01.pdf KENDALL M.G. 1975. Rank correlation methods. 4th ed. London. Griffin. ISBN 0852641990 pp. 202.
KIMIJIMA S., SAKAKIBARA M., AMIN A.K.M.A., NAGAI M., INDRIATI A.Y. 2020. Mechanism of the rapid shrinkage of Limboto Lake in Gorontalo, Indonesia. Sustainability. Vol. 12. Iss. 22, 9598. DOI
10.3390/su12229598.
KLHK 2015. Gerakan penyelamatan danau Limboto (Germadan Limboto) [Lake rescue movement of Limboto Lake]. Gorontalo. Kementerian Lingkungan Hidup dan Kehutanan pp. 91.
KOEM S., RUSIYAH 2017. Monitoring of drought events in Gorontalo Regency. IOP Conference Series: Earth and Environmental Science. Vol. 98, 012053. DOI
10.1088/1755-1315/98/1/012053.
KOEM S., RUSIYAH 2018. Karakteristik spasiotemporal kekeringan meteorologi di Kabupaten Gorontalo tahun 1981–2016 [Spatio-temporal characteristics of meteorological drought in Gorontalo Regency in 1981–2016]. Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan. Vol. 8 p. 355–364. DOI
10.29244/jpsl.8.3.355-364. KUMAR L., MUTANGA O. 2018. Google Earth Engine applications since inception: Usage, trends, and potential. Remote Sensing. Vol. 10, p. 1509. DOI
10.3390/rs10101509.
MANN H.B. 1945. Nonparametric tests against trend. Econometrica. Vol. 13. No. 3 p. 245–259. DOI
10.2307/1907187.
MAXWELL A.E., WARNER T.A. 2020. Thematic classification accuracy assessment with inherently uncertain boundaries: An argument for Center-Weighted Accuracy Assessment Metrics. Remote Sensing. Vol. 12, 1905. DOI
10.3390/rs12121905.
MCFEETERS S.K. 1996. The use of the Normalized Difference Water Index (NDWI) in the delineation of open water features. International Journal of Remote Sensing. Vol. 17 p. 1425–1432. DOI
10.1080/01431169608948714.
NGUYEN U.N.T., PHAM L.T.H., DANG T.D. 2019. An automatic water detection approach using Landsat 8 OLI and Google Earth Engine cloud computing to map lakes and reservoirs in New Zealand. Environmental Monitoring and Assessment. Vol. 191, 235. DOI
10.1007/s10661-019-7355-x.
OKORO S.U., SCHICKHOFF U., BÖHNER J., SCHNEIDER U.A. 2016. A novel approach in monitoring land-cover change in the tropics: Oil palm cultivation in the Niger Delta, Nigeria. DIE ERDE – Journal of the Geographical Society of Berlin. Vol. 147(1) p. 40–52. DOI
10.12854/erde-147-3.
OTSU N. 1979. A threshold selection method from gray-level histograms. IEEE Transactions on Systems, Man, and Cyber- netics. Vol. 9 p. 62–66. DOI
10.1109/TSMC.1979.4310076.
PEKEL J.-F., COTTAM A., GORELICK N., BELWARD A.S. 2016. High- resolution mapping of global surface water and its long-term changes. Nature. Vol. 540 p. 418–422. DOI
10.1038/nature20584.
PUTRA S.S., HASSAN C., DJUDI, SURYATMOJO H. 2013. Reservoir saboworks solutions in Limboto Lake Sedimentations, Northern Sulawesi, Indonesia. Procedia Environmental Sciences. Vol. 17 p. 230–239. DOI
10.1016/j.proenv.2013.02.033.
REZZAG BARA C., DJIDEL M., MEDJANI F., LABAR S. 2019. Spatiotemporal evolution of land surface temperature of Lake Oubeira catch-ment, northeastern Algeria. Journal of Water and Land Development. No. 43 (X–XII) p. 151–157. DOI
10.2478/jwld-2019-0073.
ROUSE W., HAAS H., DEERING W. 1973. Monitoring vegetation systems in the great plains with ERTS. In: 3rd Earth Resources Technology Satellite-1 Symposium. NASA. Vol. 1 p. 309–317.
SEN P.K. 1968. Estimates of the regression coefficient based on Kendall’s Tau. Journal of the American Statistical Association. Vol. 63(324) p. 1379. DOI
10.2307/2285891.
STUHLER S.C., LEITERER R., JOERG P.C., WULF H., SCHAEPMAN M.E. 2016. Generating a cloud-free, homogeneous Landsat-8 mosaic of Switzerland using Google Earth Engine. DOI
10.13140/RG.2.1.2432.0880.
SUBEHI L., WIBOWO H., JUNG K. 2016. Characteristics of rainfall- discharge and water quality at Limboto Lake, Gorontalo, Indonesia. Journal of Engineering and Technological Sciences. Vol. 48 p. 288–300. DOI
10.5614/j.eng.technol.sci.2016.48.3.4.
TAMIMINIA H., SALEHI B., MAHDIANPARI M., QUACKENBUSH L., ADELI S., BRISCO B. 2020. Google Earth Engine for geo-big data applica-tions: A meta-analysis and systematic review. ISPRS Journal of Photogrammetry and Remote Sensing. Vol. 164 p. 152–170. DOI
10.1016/j.isprsjprs.2020.04.001.
TRISAKTI B. 2013. Kajian penentuan luas permukaan air danau dan sebaran vegetasi air dengan metoda penginderaan jauh [Study of the lake water surface area and aquatic vegetation distribution determination based on remote sensing method]. LIMNOTEK. Vol. 20. No. 1 p. 10–20.
UMAR I., MARSYOYO A., SETIAWAN B. 2018. Analisis Perubahan Penggunaan Lahan Sekitar Danau Limboto Di Kabupaten Gorontalo [Analysis of changes in land use around Limboto Lake in Gorontalo District]. Jurnal Tata Kota dan Daerah. Vol. 10. No. 2 p. 77–90. DOI
10.21776/ub.takoda.2018.010.02.3.
WANG C., JIA, M., CHEN N., WANG W. 2018. Long-term surface water dynamics analysis based on Landsat imagery and the Google Earth Engine platform: A case study in the Middle Yangtze River Basin. Remote Sensing. Vol. 10, 1635. DOI
10.3390/rs10101635.
WANG Y., LI Z., ZENG C., XIA G.-S., SHEN H. 2020. An urban water extraction method combining deep learning and Google Earth Engine. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. Vol. 13 p. 769–782. DOI
10.1109/JSTARS.2020.2971783.
WANG Y., MA J., XIAO X., WANG X., DAI S., ZHAO B. 2019. Long-term dynamic of Poyang Lake surface water: A mapping work based on the Google Earth Engine cloud platform. Remote Sensing. Vol. 11, 313. DOI
10.3390/rs11030313.
WU G., LIU Y. 2014. Satellite-based detection of water surface variation in China’s largest freshwater lake in response to hydro-climatic drought. International Journal of Remote Sensing. Vol. 35 p. 4544–4558. DOI
10.1080/01431161.2014.916444.
YUNGINGER R., BIJAKSANA S., DAHRIN D., ZULAIKAH S., HAFIDZ A., KIRANA K., SUDARNINGSIH S., MARIYANTO M., FAJAR S. 2018. Lithogenic and anthropogenic components in surface sediments from Lake Limboto as shown by magnetic mineral characteristics, trace metals, and REE geochemistry. Geosciences. Vol. 8 p. 116. DOI
10.3390/geosciences8040116.
ZHOU G., MA Z., SATHYENDRANATH S., PLATT T., JIANG C., SUN K. 2018. Canopy reflectance modeling of aquatic vegetation for algorithm development: Global sensitivity analysis. Remote Sensing. Vol. 10. Iss. 6, 837 p. 1–22. DOI
10.3390/rs10060837.
ZOU Z., DONG J., MENARGUEZ M.A., XIAO X., QIN Y., DOUGHTY R.B., HOOKER K.V., HAMBRIGHT K.D. 2017. Continued decrease of open surface water body area in Oklahoma during 1984–2015. Science of The Total Environment. Vol. 595 p. 451–460. DOI
10.1016/j.scitotenv.2017.03.259.