Forecasting and Observing the Open-to-Coastal Ocean for Copernicus Users (FOCCUS)

Part of EU Open Research Repository
Published April 8, 2026 | Version v2
Dataset Open

Sea Level Balearic Islands (In situ)

Authors/Creators

  • 1. EDMO icon Balearic Islands Coastal Observing and Forecasting System

Contributors

  • 1. Maritime Hydrographic Directorate "Comandor Alexandru Catuneanu"
  • 2. EDMO icon COLAB Atlantic
  • 3. CoLAB +ATLANTIC
  • 4. SOCIB
  • 5. CSIC
  • 6. SOCIB, Balearic Islands Coastal Observing and Forecasting System
  • 7. ROR icon Balearic Islands Coastal Observing and Forecasting System

Description

High-frequency sea level parameters dataset

The Sea Level parameters product provides high-frequency sea level measurements collected by in-situ instrumentation. The time series is provided as continuous 10-minute measurements. The output files are provided as point measurements at fixed coastal locations, characterizing local sea level conditions. The data product also delivers comprehensive quality control flags following Copernicus Marine In Situ TAC standards.
Detailed information on the included datasets and vocabularies can be found in the Product User Manual.

Technical details

The datasets are provided separately for each location in NetCDF format. Each file contains a time series of sea level parameters, their corresponding quality control flags and additional metadata.

Parameters

This product includes time series of sea level height and atmospheric pressure derived from direct measurements. The parameters included in the dataset are listed below.

 

Variable

Long Name

Units

SLEV

Water surface height above a specific datum

m

SLEV_QC

Water surface height above a specific datum quality flag

dimensionless

ATMS

Atmospheric pressure at sea level

hPa

ATMS_QC

Atmospheric pressure at sea level quality flag

dimensionless

Data sources

Platforms: Coastal structure

Instruments: Radar TideStation SeaLevel H500XL, water pressure gauge SBE26+ and an atmospheric pressure sensor PTB330

Data quality

The accuracy of sea level measurements depends on the sensor type and environmental conditions. For radar-based system, the nominal accuracy is ±10 mm with a resolution of 1 mm, although performance can be influenced by atmospheric humidity, temperature gradients, and surface turbulence. For pressure-based tide gauges, precision is defined by the manufacturer’s specifications (typically within ±1 mm to ±5 mm) and may be affected by long-term sensor drift, temperature compensation, or biofouling. In all cases, the effective accuracy in operational conditions reflects both the intrinsic technical specifications of the instrument and the local environmental factors

A comprehensive quality control (QC) procedure has been applied to the data, following Copernicus Marine In Situ TAC standards. Flags are assigned based on automated QC tests, including global range, regional range, spike detection, gradient analysis, and stationarity tests.

Spatial and Temporal coverage

Site

Longitude

Latitude

Period

Sant Antoni

1.298776

38.977089

2015-03-06 to 2026-03-17

Sa Ràpita

2.953257

39.360312

2011-05-05 to 2025-12-11

Contact information

For further technical inquiries or additional information about the dataset, please contact mobims@socib.es

 

Files

Files (88.4 MB)

Name Size Download all
md5:7d80ead07848c4bd920ed4e13242aa61
27.6 MB Download
md5:65a4e53458ba054d5f0aa2f891a6eb97
60.8 MB Download

Additional details

Funding

European Commission
FOCCUS - Forecasting and observing the open-to-coastal ocean for Copernicus users 101133911

Dates

Collected
2011-05-05/2025-12-11

References