Watersheds may not recover from drought

TJ Peterson, M Saft, MC Peel, A John - Science, 2021 - science.org
The Millennium Drought (southeastern Australia) provided a natural experiment to challenge
the assumption that watershed streamflow always recovers from drought. Seven years after …

Inference in finite state space non parametric hidden Markov models and applications

É Gassiat, A Cleynen, S Robin - Statistics and Computing, 2016 - Springer
Abstract Hidden Markov models (HMMs) are intensively used in various fields to model and
classify data observed along a line (eg time). The fit of such models strongly relies on the …

A stochastic nonparametric approach for streamflow generation combining observational and paleoreconstructed data

J Prairie, K Nowak, B Rajagopalan… - Water Resources …, 2008 - Wiley Online Library
The Colorado River basin experienced the worst drought on record during 2000–2004.
Paleoreconstructions of streamflow for the preobservational period show droughts of greater …

[PDF][PDF] Temporal characteristics and variability of point rainfall: a statistical and wavelet analysis

S Beecham, RK Chowdhury - International journal of Climatology, 2010 - academia.edu
Rainfall characteristics at different temporal resolutions play a significant role in sustainable
urban water management. In this study we attempted to identify the temporal characteristics …

Consistent estimation of the filtering and marginal smoothing distributions in nonparametric hidden Markov models

Y De Castro, E Gassiat… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
In this paper, we consider the filtering and smoothing recursions in nonparametric finite state
space hidden Markov models (HMMs) when the parameters of the model are unknown and …

A Markov switching model for annual hydrologic time series

B Akintug, PF Rasmussen - Water resources research, 2005 - Wiley Online Library
This paper investigates the properties of Markov switching (MS) models (also known as
hidden Markov models) for generating annual time series. This type of model has been used …

Nonparametric finite translation hidden Markov models and extensions

E Gassiat, J Rousseau - 2016 - projecteuclid.org
Supplement to “Nonparametric finite translation hidden Markov models and extensions”. In
the supplementary material, we provide an oracle inequality which is used to prove Theorem …

Climate‐informed stochastic hydrological modeling: Incorporating decadal‐scale variability using paleo data

BJ Henley, MA Thyer, G Kuczera… - Water Resources …, 2011 - Wiley Online Library
A hierarchical framework for incorporating modes of climate variability into stochastic
simulations of hydrological data is developed, termed the climate‐informed multi‐time scale …

Minimax adaptive estimation of nonparametric hidden Markov models

Y De Castro, C Lacour - Journal of Machine Learning Research, 2016 - jmlr.org
We consider stationary hidden Markov models with finite state space and nonparametric
modeling of the emission distributions. It has remained unknown until very recently that such …

Fundamental limits for learning hidden Markov model parameters

K Abraham, E Gassiat, Z Naulet - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
We study the frontier between learnable and unlearnable hidden Markov models (HMMs).
HMMs are flexible tools for clustering dependent data coming from unknown populations …