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Collecting and Processing Earth Science Data Metrics at NASA ESDIS
Pan, Jianfu ; Casiano, Nelson ; Klene, Stephan ; Smith, James ; Wanchoo, Lalit ; Kafle, Durga
Goddard Space Flight Center 2019
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Título:
Collecting and Processing Earth Science Data Metrics at NASA ESDIS
Autor:
Pan, Jianfu
;
Casiano, Nelson
;
Klene, Stephan
;
Smith, James
;
Wanchoo, Lalit
;
Kafle, Durga
Assuntos:
Administration And Management
;
Documentation And Information Science
Notas:
GSFC
San Francisco, CA
GSFC-E-DAA-TN76396
Goddard Space Flight Center
Descrição:
Since the launch of Terra satellite in 1999, the number of Earth Science remote sensing data products created and distributed by NASA's Earth Observing System (EOS) Data and Information System (EOSDIS) has increased from a few hundred to nearly ten thousand. NASA's Earth Science Data and Information System (ESDIS) Metrics System (EMS) collects metrics on data ingest, archive, and distribution by its Distributed Active Archive Centers (DAACs) and the Science Investigator-led Systems (SIPS), known as Data Providers. These metrics are critical in helping NASA management as well as data producers in resource planning and gaining a wide range of knowledge of data users and data usage.EMS receives flat files, or log files of data archive, ingest, and distribution either in their raw format, such as Apache web logs, or text files of log records formatted by the Data Providers. Tens of millions of records are processed each day to extract metrics on data products, user information, distribution protocols and services, and so on. The metrics are then made available to designated parties.This presentation provides an overview of the EMS processing workflow and improvement efforts made in recent years to handle ever-increasing number of data records and new metrics requirements, discusses several key steps including mapping log records to data products and identifying user communities along with geo-distribution, and demonstrates typical metrics capabilities produced by the EMS system. Challenges and potential approaches to improve the system are also discussed.
Editor:
Goddard Space Flight Center
Data de criação/publicação:
2019
Idioma:
Inglês
Links
View record in NASA$$FView record in $$GNASA
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