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Inventories of CO2 emissions from international shipping 2007–2012 91 a) Deadweight tonnes b) Gross registered tonnes c) Main engine power installed Figure 67: Crossplots of deadweight tonnes, gross tonnes and average installed main engine power for the year 2007, as reported by the Second IMO GHG Study 2009 (x-axis) and the Third IMO GHG Study 2014 (y-axis) There are differences in parameters between the studies. The most important uncertainty identified by the Second IMO GHG Study 2009 was engine operating days, especially for main engines. The 2009 study considered confidence to be “moderate, but dominat[ing] uncertainty”, and explained that the coverage accuracy of the AIS data would affect uncertainty in several ways. Uncertainty in main engine load was reported as the second most important parameter affecting confidence in the 2009 bottom-up calculations. Generally, uncertainty in auxiliary engine inputs was assessed as moderate to low in the Second IMO GHG Study 2009 (i.e. the study reported confidence in these to be moderate to high). The 2009 study identified several ways in which auxiliary engine information was uncertain, including engine size, auxiliary engine operating days, auxiliary engine load and auxiliary engine specific fuel oil consumption. The IHSF data on auxiliary engines used in the Third IMO GHG Study 2014 remained sparse, although the consortium was able to access auxiliary data for more than 1,000 ships from noon reports, previous vessel boardings, etc. These are shown in Figure 68.
92 Third IMO GHG Study 2014 a) Days at sea b) Engine load (average % MCR) c) Auxiliary engine fuel consumption Figure 68: Crossplots for days at sea, average engine load (% MCR) and auxiliary engine fuel use for the year 2007, as reported by the Second IMO GHG Study 2009 (x-axis) and the Third IMO GHG Study 2014 (y-axis) As a result, activity-based calculations of fuel consumption are generally similar. Figure 69 presents crossplots showing that average main engine fuel consumption and average total vessel fuel consumption patterns are consistent between the Second IMO GHG Study 2009 and the Third IMO GHG Study 2014. a) Main engine fuel consumption b) Total vessel fuel consumption Figure 69: Crossplots for average main engine daily fuel consumption and total vessel daily fuel consumption for 2007, as reported by the Second IMO GHG Study 2009 (x-axis) and the Third IMO GHG Study 2014 (y-axis)
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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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1 Inventories of CO 2 emissions fro
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Inventories of CO2 emissions from i
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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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