1,721,022 research outputs found
Preliminary results after a formal quality assessment of a sample of the last five years' Crisis Maps production
No full textFirst extensive and cost-effective quality check of Crisis Maps: presentation of assessment parameters and results
No full textThe digital representation of disaster situations into maps, mainly based on remotely sensed observations, is becoming a widely used instrument for emergency management. Thousands of maps are being produced all over the world and big attention is paid by international institutions, such as the World Bank, the United Nations and the European Commission to these tools. The quality of crisis maps is a crucial element to ensure effectiveness in the disaster response chain, but it is often neglected with respect to the need for a rapid delivery. In this paper a sample of crisis maps produced between 2005 and 2010 by world leader providers has been evaluated through around 40 parameters assessed by visual analysis and extracted from the validation protocol designed at the Joint Research Centre (JRC) of the European Commission. The maps turned out to be in most cases clearly readable, but some gaps and inconsistencies have been singled out, due to the lack of international standard references. The results are analysed in detail and some remarks are presented. © 2012 Taylor & Francis
A validation exercise in SAFER: applying a validation protocol to maps of forest fires in Corsica
No full textIn the framework of Emergency Reponse Core Services (ERCS), in particular SAFER (Services and Applications For Emergency Response) project, the JRC validation team is applying its Validation Protocol to different emergency map applications. In this paper the Corsica fires case of July 2009 is presented. In particular results regarding positional and thematic accuracy are shown and discussed.JRC.DG.G.2 - Global security and crisis managemen
Development and implementation of a validation protocol for crisis maps: reliability and consistency assessment of forest fires maps
No full textValidation is an emerging topic in the field of geospatial information for emergency response. In the framework of GMES initiative (Global Monitoring for Environment and Security), SAFER project (Services and Applications For Emergency Response) seeks to implement and validate the preoperational versions of Emergency Response Core Services. In that context, a dedicated effort has been made on the development and implementation of a comprehensive, product-oriented validation protocol tailored to crisis maps and datasets. This paper presents the approach for validation of crisis maps and its application in the context of rapid mapping of forest fires in Corsica during summer 2009. It also discusses the main challenges and the critical aspects of validation of geospatial information in emergency response services.JRC.G.2 - Global security and crisis managemen
Validation of EO-derived information for crisis management: a Digital Earth perspective in the VALgEO expert community
No full textNew generation remote sensing technologies open today new application areas and demonstrate their effectiveness providing geo-information in support to disaster management. In the same time, new challenges can be identified and among them has a crucial role the validation of geo-information under the new specific constraints dictated by the disaster management application area. In the frame of the Digital Earth concept geo-information is a sharable resource, and a resource is truly shareable not only if we know the formal code used to made it � and then we can read it - , but also, - and in particular case during disaster - if we know the reliability of this information. This is crucial in order to avoid information overflow and time wasting during the decision-making process in support to disaster management. The �International workshop on validation of geo-information products for crisis management�, VALgEO 2009, was held at the Joint Research Centre, in Ispra, Italy on 21-23 November 2009. The purpose of this first workshop was to initiate a dialogue between the main actors of Emergency Response Services around validation and to raise awareness on the necessity for an independent formal assessment of geo-information for disaster management. This special issue includes a collection of invited papers presented at the workshop. It gathers interdisciplinary initiatives where the majority of the contributions either directly or implicitly address different aspects of validation of geo-information generated following a disaster, ranging from flood information to forest fires and earthquake damage assessments.JRC.G.2 - Global security and crisis managemen
Crisis maps validation and user requirements: an experience in SAFER project
No full textThe European Commission is putting a relevant effort in developing earth observation based Emergency Response Services (ERS),
through the Global Monitoring for Environment and Security initiative and several FP7 projects, such as SAFER (Services and
Applications For Emergency Response). The validation process developed in SAFER aims at measuring the effectiveness, reliability
and usability of the ERS against users’ requirements. The JRC (Joint Research Centre of the European Commission) and the BBK
(German Federal Office of Civil Protection and Disaster Assistance) are working together bridging the different perspectives. After a
two year SAFER experience, a diversity of products are published whereas the user’s requirements and feedback are still
incomplete. The definition of validation criteria is therefore a challenge. In some cases the independent validation raised problems
that did not represent critical issues for the users, in some others it gave technical reference for the final users evaluation. A variety
of users, with differing needs, is involved. Their feedback has been collected through a survey: the results indicate that some users
are highly satisfied with the service and products whereas others point to some major issues. For example in some cases the
phenomena in the maps were far from what had been found in the emergency area, and in some other cases the final users did not
use or used partially the provided information during the response operations. This paper presents the JRC and BBK experience in
SAFER project about validation against user requirements and users’ satisfaction.JRC.DG.G.2 - Global security and crisis managemen
Comparison of damage assessment maps derived from very high spatial resolution satellite and aerial imagery of the Haiti 2010 earthquake impact area
No full textFollowing the devastating M7.2 earthquake that affected Haiti on January 12, 2010 two types of building damage assessments were produced: 1) area-based damage assessments based on pre- and post-event satellite imagery and 2) a detailed building-by-building, point-based, damage assessments using pre-event satellite imagery and post-event aerial photography. In this paper, we compare the consistency and the usability of area-based damage assessment maps from satellite imagery to the detailed point-based damage assessment from aerial data. Our main objective is to understand how the �rapid mapping� output can be used to steer the more detailed building-by-building assessments that are typical in determining post-disaster recovery and reconstruction efforts. The results of these experiments indicate that area-based damage assessment maps using satellite data are capable of capturing the damage pattern, mainly in areas with a high level of damaged and collapsed structures. However, satellite-based assessments cannot provide the level of information needed for the quantification of damage intensity. The detailed aerial photography data is better suited for obtaining absolute figures on the number of damaged and destroyed structures.JRC.G.2 - Global security and crisis managemen
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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