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Inventories of CO2 emissions from international shipping 2007–2012 77 Figure 56: Total noon-reported quarterly fuel consumption of the main engine compared with the bottom-up estimate over each quarter of 2012, with a filter to select only days with high reliability observations of the ship for 75% of the time or more Figure 57: Total noon-reported quarterly fuel consumption of the main engine compared with the bottom-up estimate over each quarter of 2007
78 Third IMO GHG Study 2014 Figure 58: Total noon-reported quarterly fuel consumption of the main engine compared with the bottom-up estimate over each quarter of 2009 Coverage statistics and fleet size quality assurance The total emissions for each fleet (and the sum of emissions of all fleets) are found from: • the emissions of any ships observed on AIS, during the period of observation; • extrapolation to cover periods of time when the observed ships are not currently under observation by AIS; • estimation for ships that are deemed “active” in the IHSF database but are not observed on AIS at all. The maximum reliability of the inventory is achieved if all the ships are observed all the time, as demonstrated by the main engine comparison in Figure 56. However, the reality is that AIS coverage is not perfect. The statistics of coverage by AIS therefore provide important insight into the quality of the estimate and the quantity of emissions calculated directly versus the quantity of data calculated from imputed and extrapolated estimates of activity. This section examines the quality of the AIS data coverage of the fleets of international, domestic and fishing ships by answering two questions: • How many of the in-service ships are observed in the AIS data set? • Of the ships that are observed, what is the duration of the observation period? The number of in-service ships observed in the AIS data set Table 26 describes the size of the fleet in the IHSF database in each year along with the percentage of the total fleet classified as in service and, of those ships, the percentage that also appears in the AIS database. Transport ships are ships that carry goods and people (all merchant shipping, ferries and cruise passenger ships); non-transport ships include service vessels, workboats, yachts and fishing vessels.
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Third IMO Greenhouse Gas Study 2014
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Published in 2015 by the internatio
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Contents Page Preface .............
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vii 3.1.2 Outline .............
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ix Fleet productivity projectio
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xii Third IMO GHG Study 2014 The re
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xiv Third IMO GHG Study 2014 MEPC m
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List of figures Page Figure 1: Bott
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List of figures xix Page Figure 46:
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List of figures xxi Annex Figures P
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List of figures xxiii Figure 45: Ca
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xxvi Third IMO GHG Study 2014 Page
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xxviii Third IMO GHG Study 2014 Tab
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Executive Summary Key findings from
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Executive Summary 3 rigorous testin
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Executive Summary 5 emissions than
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Executive Summary 7 Figure 2 shows
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Executive Summary 9 because, in con
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Executive Summary 11 Particular car
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Executive Summary 13 larger ship si
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Executive Summary 15 Summary of Sec
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Executive Summary 17 a. CO 2 b. CH
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Executive Summary 19 Demand for coa
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Executive Summary 21 Figure 15 show
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Executive Summary 23 • ships obse
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Executive Summary 25 b Noon report
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3 Scenarios for shipping emissions
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Scenarios for shipping emissions 20
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Bibliography for Main Report and An
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154 Third IMO GHG Study 2014 IHSF o
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156 Third IMO GHG Study 2014 Table
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160 Third IMO GHG Study 2014 Pre-pr
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162 Third IMO GHG Study 2014 There
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164 Third IMO GHG Study 2014 Follow
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166 Third IMO GHG Study 2014 Figure
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168 Third IMO GHG Study 2014 data s
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172 Third IMO GHG Study 2014 Ship c
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174 Third IMO GHG Study 2014 experi
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176 Third IMO GHG Study 2014 The mo
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178 Third IMO GHG Study 2014 sfc =
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180 Third IMO GHG Study 2014 2011 D
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182 Third IMO GHG Study 2014 Ship t
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202 Third IMO GHG Study 2014 Every
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208 Third IMO GHG Study 2014 time s
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210 Third IMO GHG Study 2014 2011
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Annex 4 Details for Section 1.5.1:
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Annex 4 231 IEA sources of uncertai
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Annex 4 233 Transfers category repo
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Annex 4 235 Figure 24: Time series
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Annex 5 Details for Section 1.5.2:
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Annex 5 239 3 The uncertainty in es
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Annex 5 241 data has been used. The
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Annex 5 243 temporal coverage QA/QC
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Annex 5 245 uncertainties (standard
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Annex 6 Details for Section 2: othe
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Table 22 - Baseline emissions facto
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Annex 6 251 Table 24 - EF-related S
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Annex 6 253 Table 31 - PM FCFs - MG
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256 Third IMO GHG Study 2014 Analys
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260 Third IMO GHG Study 2014 that s
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262 Third IMO GHG Study 2014 Contai
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264 Third IMO GHG Study 2014 Regard
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266 Third IMO GHG Study 2014 LNG ma
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268 Third IMO GHG Study 2014 • Th
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270 Third IMO GHG Study 2014 ULCCs
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274 Third IMO GHG Study 2014 potent
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276 Third IMO GHG Study 2014 Size c
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280 Third IMO GHG Study 2014 Year o
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282 Third IMO GHG Study 2014 Johnso
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284 Third IMO GHG Study 2014 The re
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286 Third IMO GHG Study 2014 MGO, t
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288 Third IMO GHG Study 2014 CH 4 M
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290 Third IMO GHG Study 2014 • As
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