<?xml version='1.0' encoding='UTF-8'?><metadata xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns="http://dublincore.org/documents/dcmi-terms/"><dcterms:title>Advancing AI-based pan-European groundwater monitoring</dcterms:title><dcterms:identifier>https://doi.org/10.26165/JUELICH-DATA/ZBLDIR</dcterms:identifier><dcterms:creator>Ma, Yueling</dcterms:creator><dcterms:creator>Montzka, Carsten</dcterms:creator><dcterms:creator>Naz, Bibi</dcterms:creator><dcterms:creator>Kollet, Stefan</dcterms:creator><dcterms:publisher>Jülich DATA</dcterms:publisher><dcterms:issued>2021-12-14</dcterms:issued><dcterms:modified>2022-03-28T07:12:47Z</dcterms:modified><dcterms:description>This study proposes an AI-based methodology combining Long Short-Term Memory (LSTM) networks and transfer learning (TL) to estimate water table depth anomalies (wtd_a) at the European scale in the absence of consistent water table depth (wtd) observational data sets, which is named LSTM-TL. The data repository provides: i) data utilized for evaluating LSTM-TL performance, i.e., input averaged monthly precipitation and soil moisture anomalies from common observational data sets (pr_a,o and θ_a,o), wtd_a estimates obtained from LSTM-TL (wtd_a,lstm-tl), wtd_a estimates obtained from LSTM networks with modeling data as input (wtd_a,lstm(m)), and wtd_a estimates obtained from LSTM networks trained on observations (wtd_a,lstm(o)); ii) reconstructed European monthly wtd_a,lstm-tl data RD1-6 from the early 1980s to the near present and their input pr_a,o and θ_a,o data; and iii) a Jupyter Notebook showing an example about the implementation of LSTM-TL. All the data sets in the repository have a spatial resolution of 0.11 degrees (~12.5 km).</dcterms:description><dcterms:subject>Earth and Environmental Sciences</dcterms:subject><dcterms:subject>Groundwater</dcterms:subject><dcterms:subject>Anomalies</dcterms:subject><dcterms:subject>LSTM-TL</dcterms:subject><dcterms:subject>Long Short-Term Memory (LSTM) networks</dcterms:subject><dcterms:subject>Transfer learning (TL)</dcterms:subject><dcterms:subject>Europe</dcterms:subject><dcterms:isReferencedBy>Ma, Y., Montzka, C., Naz, B. and Kollet, S.: Advancing AI-based pan-European groundwater monitoring, in preparation.</dcterms:isReferencedBy><dcterms:contributor>Ma, Yueling</dcterms:contributor><dcterms:dateSubmitted>2021-12-13</dcterms:dateSubmitted><dcterms:license>CC0</dcterms:license><dcterms:rights>CC0 Waiver</dcterms:rights></metadata>