COVID-CO2-ferries

The COVID_CO2_ferries dataset stems from variables of the THETIS-MRV and IHS Markit datasets. They are described in the manuscript referenced below in "Additional Resources".

Meaning of the variables in the COVID_CO2_ferries dataset:

number
name
meaning
units

1
IMOn
IMO number (Vessel unique identifier)
-

2
Eber
Per-ship CO2 emissions at berth
ton

3
Etot
Per-ship total CO2 emissions
ton

4
Dom
Sea Basin (NOR, BAL, MED)
-

5
COVID
dummy variable (true in 2020)
-

6
year
year of CO2 emissions
-

7
Pme
Total power of main engines
0/1

8
LOA
Length over all
0/1

9
nPax
Passenger carrying capacity
0/1

10
yearB
year of building
0/1

11
nCalls
Per-ship number of port calls
-

12
VType
Vessel type (see defining Eq. below)
-

The variables with binary values (0/1 in the "units" column) refer to below (0) or above (1) the thresholds defined by:

\(k\)
\(\varphi_k\)
\(\varphi_{k0}\)
units

0
Pme
21,600
kW

1
nPax
1,250
-

2
LOA
174
m

3
yearB
1999
-

The VType variable is defined by:

\(\texttt{VType} = \sum_{k=0}^{3} \, 2^{k} \cdot H(\varphi_{k} - \varphi_{k0}) \)

Additional Resources

The "How COVID-19 affected GHG emissions of ferries in Europe" manuscript by Mannarini et al. (2022) using this dataset is published on Sustainability 2022, 14(9), 5287; https://doi.org/10.3390/su14095287. You may want to cite it. 

A jupyter notebook using this dataset is available at https://github.com/hybrs/COVID-CO2-ferries