Abstract
Modelling and prediction of hydro-meteorological variables over land and atmosphere involve ground sampling at selected locations over the study area. Optimally selecting the number and location of sampling points is important for making reliable predictions without escalating project costs. This study proposes an approach for selecting sampling locations by considering inter-dependency of predictor variables and the prediction variable using remote sensing data. A homogeneity map, i.e., a thematic map representing areas with the same expected value of the prediction variable, with a given level of uncertainty and spatial resolution, is generated. The homogeneity maps can be different at different times for the same location. Thus, along with the spatial variability of the prediction variable, its temporal variability is also obtained. Depending on the obtained variability, a decision on the number and location of sampling points can be taken prudently. In this paper, the proposed methodology is demonstrated by considering soil moisture over an experimental watershed as the prediction variable.
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References
Deshpande PJ, Sure A, Dikshit O, Tripathi S (2019) A framework for estimating representative area of a ground sample using remote sensing. Int Arch Photogramm Remote Sens Spat Inf Sci XLII-2/W13:687–692. https://doi.org/10.5194/isprs-archives-XLII-2-W13-687-2019
Gupta S, Karumanchi SH, Dash SK, Adla S, Tripathi S, Sinha R, Paul D, Sen IS (2019) Monitoring ecosystem health in India’s food basket. Eos 100. https://doi.org/10.1029/2019EO117683
Gorelick N, Hancher M, Dixon M, Ilyushchenko S, Thau D, Moore R (2017) Google earth engine: planetary-scale geospatial analysis for everyone. Remote Sens Environ 202:18–27. https://doi.org/10.1016/j.rse.2017.06.031
Pedregosa F, Varoquaux G, Gramfort A, Michel V, Thirion B, Grisel O, Blondel M, Prettenhofer P (2011) Scikit-learn: machine learning in Python. J Mach Learn Res 12:2825–2830
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Deshpande, P.J., Sure, A., Dikshit, O., Tripathi, S. (2021). Study of Temporal Behaviour of Homogeneity Maps for Estimating Representative Area of a Ground Sample Using Remote Sensing. In: Bhuiyan, C., Flügel, WA., Jain, S.K. (eds) Water Security and Sustainability. Lecture Notes in Civil Engineering, vol 115. Springer, Singapore. https://doi.org/10.1007/978-981-15-9805-0_9
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DOI: https://doi.org/10.1007/978-981-15-9805-0_9
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