Deep Sea Mining CCFZ Experiment 2021

Deep Sea Mining CCFZ Experiment 2021

Clarion-Clipperton Fracture Zone – April 16 - May 9, 2021

P.F.J. Lermusiaux, P.J. Haley,
C. Mirabito,
W.H. Ali, M. Doshi
MSEAS

T. Peacock, C.M. Royo,
R. Ouillon,
S. El Mousadik
MIT ENDLab

Center for Ocean Engineering
Mechanical Engineering
Cambridge, Massachusetts

The Deep Sea Mining Real-Time Sea Experiment occurs in the Clarion-Clipperton Fracture Zone from April 16 to May 9, 2021.

Our MIT-MSEAS group specific objectives for the trial are to: (i) forecast the regional multi-resolution ocean fields using our MIT-MSEAS PE modeling system; (ii) utilize these fields and our Lagrangian methods to forecast plumes, Lagrangian transports, and coherent sets; and (iii) provide quantitative guidance on ocean dynamics, optimal sediment plume deployments, and optimal adaptive sampling. We thank all of the team members for their inputs and collaboration.

Real-time MSEAS Forecasting

MSEAS Ocean Forecasts

Real-Time Forecast Estimates of Present (12 May 1600Z) Environmental Conditions
Plume (May09 16Z release)	Bottom Velocity	Bottom Vorticity	Backward FTLE	Local Bottom Velocity	Interactive Forecast: 4000m Temp. over Vel.

Nowcast and Forecast Products
with dynamics descriptions

The plume concentrations are normalized for a point source with a concentration of 1. The point source is also assumed to have a flow rate of 0.56 m³/s.

Analyses and Forecasts Issued On

April 2021

May 2021

Belgian Mining Area

German Mining Area

Ocean Physics

Horizontal Maps

Central Forecast

Mean and Uncertainty:
Ensemble Forecast

Interactive Forecast

Local Bottom Velocity

2D Coherent Structures
on the bottom

Horizontal Maps

Central Forecast

Forecast Skill Metrics (compared to synoptic data)

MSEAS-processed atmospheric forcing flux forecasts:

NCEP GFS 0.25°	April/May 2021
Belgian area daily average wind stress, E-P, heat flux, and SW Radiation (from 0Z forecast each day)
German area daily average wind stress, E-P, heat flux, and SW Radiation (from 0Z forecast each day)
Belgian area flux snapshot plots (one 6-day forecast issued daily)	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
German area flux snapshot plots (one 6-day forecast issued daily)	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
Forecast snapshot plots (four 6-hour forecasts/day for both areas)	14	15	16	17	18	19	20	21	22	30	1	2	3	4	5	6	7	8	9

MSEAS-processed model predictions

Latest selected HYCOM predictions
TPXO-9 tidal model predictions:
- Center of Belgian Mining Area
  - April 12-25, 2021 time series: Barotropic velocity (U- and V-components)
  - March 31-May 5, 2021 time series: Barotropic velocity (U- and V-components)
- Center of German Mining Area
  - May 3-May 14, 2021 time series: Barotropic velocity (U- and V-components)
  - April 13-May 18, 2021 time series: Barotropic velocity (U- and V-components)

Synoptic Data

MIDAS Valeport CTD data (from ENDLab)
Latest SST Images (from Sentinel-3A/B; processed from EUMETSAT)

Acknowledgements: We thank all of the team members for their inputs and collaboration. We also wish to thank Matthew Pyle, Eric Rogers, Geoff DiMego, and Arun Chawla of NCEP for help and support for atmospheric forcing data. We thank EUMETSAT for their near real time satellite SST data.

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Data sources

Ocean synoptic
- The Global Temperature and Salinity Profile Programme (GTSPP)
  - Data Access
    - Real-Time Data
Ocean historical/climatological
- The Global Temperature and Salinity Profile Programme (GTSPP)
  - Data Access
    - Best-Copy Data
- Data sets & products NOAA National Centers for Environmental Information
  - World Ocean Database (WOD)
Atmospheric forcing
- Weather Research and Forecasting (WRF) Model Real-Time Forecasts
- National Centers for Environmental Prediction (NCEP) products:
  - Global Forecast System Model: version 4 (GFS), at 0.5 degree resolution (GFSp5) and also at 0.25 degree resolution (GFSp25)

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