scope and coverage, and in some cases, because in-situobservations can be difficult to obtain or access of disasterassessment and assistance teams to the affected areas isdelayed or restricted, remote sensing data may be the onlyreliable information source, especially in the immediateaftermath of disasters. In addition, user-generated datavaluably serves the ground validation and calibration ofspace-based data, and increases understanding of socialimplications of disasters.New individual datasets that help understand disasterimpacts include phone call detail records (CDR) and airtimeexpense records. The former are anonymized records ofcaller and receiver phone IDs and cell towers, and call dateand time. Airtime expense records detail the amount andnearest tower location of cell minute purchases 359 . Thisdata has been used by researchers to understand broadhuman mobility and population response across manycontexts such as measurements in post-earthquake Haiti in2010 360 , and in 2009 floods in Tabasco, Mexico 361 .Recent innovations have also increased the utility ofspatially-referenced video obtained with GPS-enabledcameras, since these can be much quicker for damageassessments than deploying staff to the field 362 . Suchgeoreferenced videos involve attaching a camera to avehicle or small aircraft and recording a damage-affectedarea, possibly later isolating individual frames to use asstatic images. This technique has been used to trackdamage after tornadoes in Tuscaloosa, Oklahoma 363 , and totrack recovery of New Orleans neighbourhoods afterHurricane Katrina 364 .Crowdsourcing can support efforts to filter the signal fromnoise in Big Data. Networks of volunteers often dubbed“digital humanitarians” 365 have been solicited to geotagand categorize images of damaged buildings in postdisasterassessments for earthquakes in Haiti, China, andChristchurch, as well as for Typhoon Haiyan in thePhilippines 366 . Tools and groups such as TomNod and theHumanitarian OpenStreetMap Team have also aideddisaster relief logistics by digitizing features like roads andbuildings from satellite imagery 367 . Similarly, volunteerswithin the Google MapMaker community have also madesignificant contributions to rapid post-disaster mapping inthe past, while contributing to improving base mapping ofregions or areas at risk as well.Use of social networks and mobile phone technology arealso being explored to crowdsource information fromdisasters where access to victims is difficult. A goodexample is the application of the Ushahidi 368 open-sourcecrisis-mapping software in Haiti which gatheredInformation through social media (e.g. Twitter and84Facebook) and text messages sent via mobile phones. Hereefforts to harness crowdsourced information on who isdisaster-affected, where and how resulted in vastquantities of information available to anyone with anInternet connection. Although the exercise was aimed atproviding immediate information for relief response to thedisaster-affected, this data once it is verified, could alsocontribute to assessing the final numbers of disasteraffected369 , in combination with other geographic andspace-based data and population density modeling. At thesame time it is important to remember that often in theimmediate aftermath of disasters those in need have losttheir access to Internet. Another example where new datasources can help in assessing the affected population wasTyphoon Ketsan in the Philippines 370 . GIS-basedenvironmental vulnerability models derived from cycloneadvisory data and the Shuttle Radar Topographic Mission(SRTM) global data set, coupled with pre-disasterpopulation data from the Global Rural Urban MappingProject was overlaid on vulnerability models to producetotal affected population numbers.New technologies also benefit from improvements in wellestablishedmethods to make monitoring processes moreefficient. In the last decade the use has increased of spatial,geographic information system (GIS), remote sensed andGlobal Navigation Satellite Systems (GNSS) techniques hasincreased to identify a sampling frame for surveys in postdisasterand post-conflict settings 371 . Furthermore, satellitetelecommunications better enable response activities andmonitoring, especially in situations where permanentinfrastructure is damaged.4.4.3. Mitigation, Risk and Vulnerability ModelingMany analyses now include reframing future risk in termsof climate change from GCM (global circulation model) andreanalysis or downscaling of this data through productssuch as Climate Wizard 372 , where users can choose a varietyof emissions scenarios to download maps on predictedchanges in temperature and precipitation at various specialscales. Combining climate model outputs and disaster riskmodels with satellite imagery such as night-time lights(NTL), to estimate human settlement and economicexposure to risk is common 373,374 .A major advantage ofsatellite data is its collection in the same place over time (indays, weeks, or months depending on the source), allowingfor automated validation and updating of risk models witheach new satellite pass. This allows for analysis of changeover time or summary of long-term trends, resulting in datasets such as Global Inundation Extent from Multi-Satellites(GIEMS) 375 , that maps average annual and historic floodingfor each month at a global scale.
New sensor data also includes unmanned aerial vehicles(“drones”) and spatially referenced (georeferenced) video.Georeferenced video has been used quickly to identify sitesof standing sewage and water to aid in cholera riskmapping in Haiti 376 and vulnerability of homes in LosAngeles, California to wildfire 377 . Drones can provide veryhigh-resolution 2-D and 3-D imagery, which can be useful inmapping complex urban riverine topography, which hasbeen used in Haiti for flood modeling assessments 378 .New data sets can help in understanding vulnerability andmobility, and data to estimate mobility patterns can begleaned for example from geolocated tweets. One piece ofresearch found that by analyzing New York City tweetersbefore, during, and after Superstorm Sandy, pre-disastermobility patterns can indicate the potential range ofmobility during a disaster 379 . Other indicators of mobilityinclude transit data by bikes 380 , buses and subways beingmade available by hundreds of municipalities 381 . Transitdata can monitor population flux at different times of day,and is just one example of open Big Data cities are releasingthat could be valuable for risk assessment.4.4.4. ChallengesWhen highlighting several new advances in the use of newdata collection methods for DRR it is also important toremember that challenges remain. For example the Twitteralgorithm used to detect food crises in Indonesiamentioned earlier in this chapter also had one misfire,predicting a food crisis where there was none. Sometimesquestions arise from the representativeness of the data asin the case of the Superstorm Sandy, where in the wake ofthe storm the social media data were more highlyconcentrated in less-impacted areas of New York City,rather than in neighbourhoods in south Queens which borethe brunt of its impact 382 . In the example of crowd-sourcedinformation in Haiti, of the more than 3,500 messagespublished on the Ushahidi-Haiti crisis map, only 202messages were tagged as “verified” by the Ushahidi team,mostly from early web submissions that had been based onmedia reports 383 . The challenges related to the use of bigdata will be addressed in more depth in Chapter 7 andChapter 8 of the report.4.5. ConclusionsEffective disaster risk reduction measures will need to playa key role for disaster-prone countries in implementation ofthe post-2015 development agenda in order to preventhard won development gains from being eroded bydisasters.Disaster loss accounting and risk assessments will playa pivotal role in monitoring progress, and concertedefforts are required to improve the coverage and85quality of data, including establishment and support tonational loss databases using common methodologies.Developing disaster statistics and risk metrics will notonly improve reporting of progress towardsinternationally agreed goals and targets but alsosupport evidence-based planning and decision making.Countries will need to address the issue of baselinesetting for monitoring of progress and, despite some ofthe weaknesses of the method, use of the 10-yearaverage of observed historical data as decided in theSendai Framework for Action on global mortality mightbe the simplest option for the moment. Nevertheless,data availability is increasing rapidly and scientificassessment and modelling capacity follows suit, andnew options could be considered for future use.In recent years, partnerships between scientificorganisations and practitioners and policy makers haveenhanced the uptake of evidence in DRR. Use ofscientific research, including risk assessments andmodels, from both the academic and businesscommunity, and analysis of the underlying drivers ofrisk, should be further promoted in planning andmonitoring.The regional dimension can provide valuable supportto the implementation of both the SDGs and the SendaiFramework. Countries from the same region facesimilar problems and benefit from sharing experiences,and it can be easier to assess the transferability of theirexperiences at the regional than the global level. Theregion can also serve as the suitable level to providesupport to countries, through capacity buildingactivities, and appropriate harmonisation andvalidation initiatives.New methods and technological solutions for datagathering are being developed with increasing speed.In order to harness these as efficiently as possible,capacity development as well as more open access todata will be required to support developing countriesin making full use of the opportunities.Several questions related to definitions of terms andthe target scope, accounting methods, baselines anddata sources will need to be answered when setting upthe monitoring framework for SDGs. Therein lies agolden opportunity to align the work being done forthe post-2015 agenda with the post-Sendai DRRmonitoring framework in order to avoid duplication,and to ensure that progress in disaster risk reductioncan be reported as an integral part of progress onsustainable development. This will spare preciousresources and allow countries to focus onimplementation in order to make developmentsustainable and resilient.
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ForewordIn September 2015, world le
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Friendship University of Russia, Ru
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List of Abbreviations and AcronymsA
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Figure ES-0-2. Links among SDGs thr
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Communication between scientists an
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implementation (SDG17), peaceful an
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percentage of women holding a leade
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environment, in order to make stron
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SDGs What is measured? Data source
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GabonNamibiaNigerSenegalRep CongoC
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There are many well established met
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issues” in respective areas of ex
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Notes1 United Nations, Prototype Gl
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51 Contributions sent by national l
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112 The 72 models are: AIM, ASF, AS
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201 For more information, please vi
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276 A. R. Subbiah, Lolita Bildan, a
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354 Information available at: http:
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African Economic Outlook, Structura
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512 Report Of The International Min
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595 Jessica N. Reimer et.al, Health
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671 Pulselabkampala.ug, 'UNFPA Ugan
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732 Climate Change timeline: (a) Sc
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790 Oxfam. ICT in humanitarian prac
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863 T. Dinku. New approaches to imp