100
CHAPTER 05. Constraints discussion
Algiers and Tipaza's wilaya ecological footprint assessments were performed in a complex
context of data scarcity and model rescaling. Indeed, the primary ambitious objective of
applying the original EF model to the entire coastal zone was redefined. The original model
only applies to the national and international levels, as it considers global trade outputs.
Moreover, some data is not produced at the local level, such as electricity production, which
is generated for the national territory instead of one specific wilaya. Therefore, the study
applied a component-based model using local data. However, data scarcity remained one of
the main constraints of this study. This chapter describes the main contextual and conceptual
constraints encountered during the EF assessment. This chapter describes the contextual
(field-related) and conceptual (model-related) limitations.
5.1. Field-related constraints
This section lists the challenges associated with data collection, especially data availability and
accuracy. The first difficulty is the structure and organization of statistics by the different
management bodies of each activity. Consequently, data was selected based on its usefulness
for calculating the EF. The following table (table 35) summarizes the criteria used to evaluate
the statistic quality (High H, Low F, and Medium M).
Table 35. Data quality assessement
Sector
Required data
Data
Availability
Data
Accessibility
Data
Completeness
Spatial and
temporal
coverage
Relevance for
EF assessment
Quality
Fishing
Fleet’s fuel
consumption
Unavailable [-]
[-]
[-]
Survey data
L
Port energy
(electricity)
consumption
Available
Partially
accessible
Incomplete
Data
available at
the level of
SONELGAZ
Available Data
for Algiers
ports
Only ECOREP
data in Tipaza
M
Infrastructures
Available
Accessible
Incomplete
Data
describing
Tipaza and
Rais Hamidou
fishing ports
are not
available
Useful data
Could lead to
an underestimation of
the built land’s
EF
M
Food
Energy
consumption in
agriculture
Unavailable [-]
[-]
Desagregated data.
Available by
engine for
each farmer
The calculation
of energy EF
was based on
estimations
L
Data
available for
both
Relevant for
the estimate of
H
CHAPTER 05. Constraints discussion
Algiers and Tipaza's wilaya ecological footprint assessments were performed in a complex
context of data scarcity and model rescaling. Indeed, the primary ambitious objective of
applying the original EF model to the entire coastal zone was redefined. The original model
only applies to the national and international levels, as it considers global trade outputs.
Moreover, some data is not produced at the local level, such as electricity production, which
is generated for the national territory instead of one specific wilaya. Therefore, the study
applied a component-based model using local data. However, data scarcity remained one of
the main constraints of this study. This chapter describes the main contextual and conceptual
constraints encountered during the EF assessment. This chapter describes the contextual
(field-related) and conceptual (model-related) limitations.
5.1. Field-related constraints
This section lists the challenges associated with data collection, especially data availability and
accuracy. The first difficulty is the structure and organization of statistics by the different
management bodies of each activity. Consequently, data was selected based on its usefulness
for calculating the EF. The following table (table 35) summarizes the criteria used to evaluate
the statistic quality (High H, Low F, and Medium M).
Table 35. Data quality assessement
Sector
Required data
Data
Availability
Data
Accessibility
Data
Completeness
Spatial and
temporal
coverage
Relevance for
EF assessment
Quality
Fishing
Fleet’s fuel
consumption
Unavailable [-]
[-]
[-]
Survey data
L
Port energy
(electricity)
consumption
Available
Partially
accessible
Incomplete
Data
available at
the level of
SONELGAZ
Available Data
for Algiers
ports
Only ECOREP
data in Tipaza
M
Infrastructures
Available
Accessible
Incomplete
Data
describing
Tipaza and
Rais Hamidou
fishing ports
are not
available
Useful data
Could lead to
an underestimation of
the built land’s
EF
M
Food
Energy
consumption in
agriculture
Unavailable [-]
[-]
Desagregated data.
Available by
engine for
each farmer
The calculation
of energy EF
was based on
estimations
L
Data
available for
both
Relevant for
the estimate of
H