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Susana FlechaICMAN-CSIC

02 · Research

Research & projects

Competitive funding, observational infrastructures and open tools.

My research trajectory is sustained by continuous competitive funding as Principal Investigator (PI) and as team member, and is articulated around three long-term observational infrastructures — the Gibraltar Fixed Time Series (GIFT), the Balearic Ocean Acidification Time Series (BOATS) and the Antarctic COJOHNS time series (Johnsons Cove, Livingston Island) — and the OCEAN–IA framework that applies artificial intelligence to environmental impact assessment in marine systems.

Projects as PI
6
Captured as PI
€359k
Team Projects
27
International
8

01 /

Current position

Current2024 – 2028 · CSIC

MOMENTUM — Postdoctoral Excellence Programme

Postdoctoral Researcher

Research framed within the OCEAN–IA line: development of deep-learning methodologies for reconstructing and predicting ocean acidification, deoxygenation and greenhouse-gas fluxes in coastal and deep-sea environments, integrating high-frequency oceanographic observations, satellite products and geophysical information.

Main objectives

  • Deep-learning models (BiLSTM) for continuous pH, pCO₂ and GHG time series
  • Integration of oceanographic, meteorological and seismic data
  • Extension of the OCEAN–IA framework to polar systems (Deception Island, Antarctica)
  • Assessment of ocean acidification trends in the Western Mediterranean

02 /

Projects as Principal Investigator

Total competitive funding captured as PI

€ 359,410.10

GHG-Andalusia

GHG Monitoring across Andalusian Ecosystems

Multiplatform monitoring of greenhouse-gas emissions across coastal, continental and marine systems of Andalusia, combining fixed stations, autonomous sensors and ship-based observations.

Funding
ICMAN-CSIC — Grants for Technical & R&D Management Support
Budget
€ 80,000

INDICLIMA

Jul 2024 – Jul 2027

Key Indicators for Climate-Change Impacts in Deep-Sea Ecosystems

Development of biogeochemical indicators for evaluating climate-change impacts on deep-sea ecosystems of the Western Mediterranean, building on the methodological outputs of EVALUARTE.

Funding
EU NextGeneration — BIOACT 2024 (BIOACT2024-004)
Budget
€ 67,850.10

EVALUARTE

Jun 2022 – Jun 2025

Vulnerability of Deep-Sea Ecosystems to Climate Change

Integrated assessment of the vulnerability of deep-sea ecosystems to climate change in the Western Mediterranean, examining the state of the art and trends in the Balearic Sea Basin.

Funding
Gobierno de las Islas Baleares — Vicenç Mut 2022
Budget
€ 114,000

STARTER

Mar 2021 – Mar 2022

Impact of Wastewater Outfalls on Posidonia oceanica

Quantification of the impact of wastewater discharges on the ecosystem services provided by Posidonia oceanica meadows in Mallorca.

Funding
Cátedra de la Mar — Fundación Iberostar
Budget
€ 12,000

Margalida Comas 2017

Dec 2017 – Dec 2019

pH Variability in Coastal Areas

Comparison across scales and sources of pH variability in Mediterranean coastal areas, establishing baselines for ocean acidification monitoring. Machine-learning applications for pH reconstruction, published in Scientific Reports.

Funding
Gobierno de las Islas Baleares
Budget
€ 66,000

AAEE111/2017

Jun 2018 – Jul 2019

Acquisition of Autonomous pH Sensors (SAMI)

Acquisition and deployment of autonomous SAMI pH sensors for continuous monitoring of ocean acidification in Mediterranean coastal waters.

Funding
Gobierno de las Islas Baleares
Budget
€ 19,560

03 /

Observational infrastructures

GIFT

Since 2008

Gibraltar Fixed Time Series

Strait of Gibraltar · 35.92°N 5.75°W

Long-term oceanographic series based on high-frequency sampling of biogeochemical and physical variables in the Strait of Gibraltar, monitoring the exchange of water masses between the Atlantic and the Mediterranean.

Role · Scientific coordinator

  • Carbon system and biogeochemical parameters
  • Quantification of decadal acidification rates in Atlantic and Mediterranean water masses
  • Results integrated into the IPCC SROCC (2019) and the CLIVAR-Spain 2025 report
  • Data deposited in IOC-UNESCO and DIGITAL.CSIC open repositories

BOATS

Since 2018

Balearic Ocean Acidification Time Series

Balearic Sea · 39.49°N 2.62°E

Coastal observation network in the Balearic Sea, with emphasis on Posidonia oceanica meadows, providing high-frequency pH and biogeochemical monitoring for ocean acidification assessment in Mediterranean coastal waters.

Role · Co-founder and co-Principal Investigator

  • AI-based methodologies for continuous pH reconstruction
  • Characterisation of acidification trends, water-column oxygenation and GHG emissions
  • Methodologies transferred to deep-sea ecosystems through EVALUARTE and INDICLIMA

COJOHNS

Since 2024

Carbon Observatory Johnson

Livingston Island, Antarctica · 62.66°S 60.37°W

High-frequency time series of seawater pH, pCO₂ and additional environmental variables (temperature, salinity, dissolved oxygen, chlorophyll) in Johnsons Cove (Caleta Johnson), Livingston Island (South Shetland Islands, Antarctica) — a glacier-influenced embayment adjacent to a tidewater glacier on the western Antarctic Peninsula.

Role · Scientific coordinator

  • Continuous pH and pCO₂ monitoring via a fixed mooring with autonomous sensors (active since February 2024)
  • First year-round record of carbonate-system variability in a glacier-fed Antarctic embayment
  • Quantification of air–sea CO₂ fluxes to assess the area as a sink or source of CO₂ to the atmosphere
  • Strengthens the observational framework for coastal carbon inputs to the Southern Ocean and improves the representation of Antarctic waters in global C-cycle assessments

05 /

Selected team-member projects

Blue Health

2026 – 2028

ICMAN-CSIC Excellence Plan · MAX-CSIC 2024 (DEEPMAX-2024-2)

Institutional excellence strategy Blue Health: a One Health approach for the ocean. Co-leading the Scientific Leadership & Cross-cutting plan: consolidation of the DATALAB cross-cutting technical unit, a three-level training programme in AI and data science applied to marine sciences, intergenerational mentoring, interdisciplinary co-supervision, and positioning of ICMAN-CSIC in international networks under the One Ocean, One Health identity.

Funding
MAX-CSIC 2024 + ICMAN-CSIC resources
Budget
€ 657,400 (Objective 8: € 62,900)
Role
Co-coordinator of Objective 8 — “Scientific Leadership & Technological Cross-cutting”

AMIGA

2026

Antarctic Methane and Ice-Marine GHG Assessment

Transnational access to the Neumayer Station III research infrastructure (Alfred Wegener Institute, Antarctica), coordinated by the Thule Institute, University of Oulu (Finland). Responsible for the biogeochemical components in Antarctic coastal waters adjacent to Neumayer III, integrating in-situ observations with advanced data-analysis methods.

Funding
EU HORIZON — POLARIN Transnational Access (GA 10113094)
Budget
€ 102,000
Role
Participating researcher — biogeochemistry (CH₄, N₂O and carbon system)

BIMAR2025 · GIFT4ALL

2026 – 2028

Gibraltar Fixed Time Series for AI Operational Tools

Funding
CSIC — BIMAR2025
Budget
€ 17,605.34
Role
Work-package leader for Artificial Intelligence

DICHOSO

2023 – 2026

Deception Island Biogeochemical Inventories in the Southern Ocean

Funding
Ministerio de Ciencia e Innovación
Budget
€ 338,800
Role
Work-package leader for Greenhouse Gases

CYCLE

2022 – 2026

Complex Dynamics of Coastal Ecosystems and Climate Resilience

Funding
MCIN
Budget
€ 258,940
Role
BOATS network station coordinator

COOPB22023

2023 – 2024

GHG Dynamics on the Southern Coasts of the Mediterranean

Funding
CSIC
Budget
€ 21,976
Role
Scientific coordinator

SuMaEco

2019 – 2022

Sustainability of Coastal Mediterranean Marine Ecosystems

Funding
MCIN
Budget
€ 239,580
Role
BOATS network station coordinator

Posi-COIN

2019 – 2021

Ecosystem Services & Carbon Sinks of Posidonia oceanica

Funding
Fundación BBVA
Budget
€ 99,830
Role
Scientific coordinator

ANTROPOSI

2018 – 2019

Human Pressures on Posidonia in the Anthropocene

Funding
Save Posidonia Project
Budget
€ 83,821.54

PERMEAD

2015 – 2018

Biogeochemistry of Doñana Wetlands

Funding
Autonomous Agency for National Parks
Budget
€ 57,312.55

06 /

International projects & programmes

  • PERSEUS

    Policy-oriented marine Environmental Research in the Southern European Seas

    FP7-OCEAN-2011 · 2012–2016

  • CARBOCHANGE

    Change in Carbon Uptake and Emissions by Oceans in a Changing Climate

    FP7, Ref. 264879 · 2011–2015

  • SESAME

    Southern European Seas: Assessing and Modelling Ecosystem Changes

    FP6-036949 GOCE · 2006–2011

  • CARBOOCEAN

    Marine Carbon Sources and Sinks Assessment

    FP6-511176 GOCE · 2005–2009

  • COST Action 735

    Tools for Assessing Air–Sea Fluxes of Climate Gases

    Short-Term Scientific Mission, Université de Liège (2010)

  • AMIGA

    Antarctic Methane and Ice-Marine GHG Assessment

    EU HORIZON — POLARIN Transnational Access (GA 10113094), Neumayer Station III · 2026

  • Canon Foundation

    Canon Foundation in Europe Research Fellowship

    JAMSTEC (Japan), 2016–2017

  • Pier2Peer

    Pier2Peer Mentorship Programme

    NOAA Ocean Acidification Program, 2025–2026

07 /

Oceanographic expeditions

I have participated in 50 oceanographic cruises (≈ 287 days at sea) across a wide range of regions.

Atlantic & Iberian Margin

  • GIFT campaigns — Strait of Gibraltar permanent stations (2008 – present)
  • P3A2 — Gulf of Cádiz (2008)
  • Patagonia Fjord — San Ignacio de Huinay, Chile (2013)

Mediterranean Sea

  • CANALES — Ibiza and Mallorca Channel (2022 – 2025)
  • BOATS — Balearic Islands (2018 – present)
  • Mediterranean CARIMED synthesis campaigns

Polar Regions

  • DICHOSO — Antarctic Peninsula (2024 – 2025)
  • POLAROMICS — Antarctic Peninsula (2026)
  • Deception Island — volcanic CO₂ dynamics

Northern Europe

  • Regional Training course onboard R/V Professor Shtokman — Baltic Sea (2007)

08 /

Scientific equipment

  • Continuous CO₂ measurement systems (LICOR, Contros HydroC)
  • Autonomous pH sensors (SAMI, SeaFET)
  • Oxygen, temperature, salinity and fluorescence optodes
  • CTD rosettes and oceanographic moorings
  • Laboratory instrumentation for carbon-system analysis (DIC/TA coulometry, spectrophotometry, gas chromatography)

Transfer & applications

International climate assessments
IPCC SROCC (2019), CLIVAR-Spain 2025
Monitoring protocols
OOI Biogeochemical Sensor Data Best Practices and User Guide
Open-access public databases
IOC-UNESCO SDG 14.3.1, DIGITAL.CSIC, SOCAT v2026, GLODAP
Regional policy support
Andalusian Regional Government, Gobierno de las Islas Baleares