Browsing Faculty of Agriculture by Author "Samita, S."

Now showing items 1-2 of 2

The estimation of daily mean soil temperature at different depths in three Agroecological regions of Sri Lanka

Kumarathunge, M. D. P.; Waidyarathne, K. P.; Samita, S. (Coconut Research Institute of Sri Lanka, 2012-12-15)

Soil temperature is an important climatic variable in regulating ecosystem process, yet it is difficult and costly to measure daily. Several mathematical models are available to estimate soil temperature; however, most are ...
Use of unobserved components model for forecasting non-stationary time series: a case of annual national coconut production in Sri Lanka

Brintha, N.K.K.; Samita, S.; Abeynayake, N.R.; Idirisinghe, I.M.S.K.; Kumarathunga, M.D.P. (Postgraduate Institute of Agriculture, Sri Lanka, 2014)

Forecasting a time series is generally done by using autoregressive integrated moving average (ARIMA) models. The main drawback of this technique is that the time series should be stationary. In reality, this assumption ...

Search DSpace