Here we can add the methodologies that we know to those described in the Manual. To all of them we can add useful features for their classification in a practical catalogue that could even be included in the Manual in the future.

Methodology catalogue (focused in applicability)

• Outputs (dry deposition to ecosystem/canopy/soil, surface/stomatal, etc.)
• Inputs needed (essential/advisable)
• Scale of application
• Reliability: Most important factors and measurements to take into account
  • According to authors
  • According to validations and comparisons
  • According to expert judgement (including ours)

Methodology guide

• Sampling needs
• Calculation complexity
• Applicability (outputs, inputs, species, environment)
• Reliability (in the optimum condition of sampling and applicability)

Recommendations

• Would we be able to create recommendations for use?