After a delay in the review of sessions due to the large number of proposals received, we are happy to announce that the Call for Papers for SciDataCon 2016 will open on Monday 18 April. Please submit your abstract on the SciDataCon 2016 website . More information on the format of abstracts will be available when the submission is open. Note that the deadline for submitting abstracts will be ...
On Monday, 9 May at 11:00 UTC, Christine Borgman and Andrea Scharnhorst will explore the issues surrounding responsibilities for data quality in Big Data, Little Data, No Data – Who is in Charge of Data Quality? , the 9th presentation in the WDS Webinar series . Data quality is a consideration throughout the research process. To what extent should responsibility for assuring data quality be ...
A ceremony was held yesterday to mark five years of successful collaboration between the Japanese National Institute of Information and Communications Technology (NICT) and the International Council for Science (ICSU) for the hosting and supporting of the World Data System – International Programme Office (WDS-IPO). The WDS-IPO was established in April 2011 and formally inaugurated in May ...
The Research Data Alliance (RDA) held its 7th Plenary Meeting on 1–3 March 2016 in Tokyo, Japan. Located on the doorstep of the World Data System – International Programme Office (WDS-IPO), ICSU-WDS was strongly involved in activities at the Plenary, organizing and contributing to several key events. The Meeting was preceded by two side events: Open Symposium: Data-driven Science—The ...
ASTER Data Made Freely Available by LP DAAC
On 1 April 2016, NASA's Land Processes Distributed Active Archive Center (LP DAAC; WDS Regular Member) began distributing ASTER Level 1 Precision Terrain Corrected Registered At-Sensor Radiance (AST_L1T) data products over the entire globe at no charge. Greater than 2.95 million scenes of archived ASTER data are now available for direct download through the LP DAAC Data Pool and for search and download through NASA's Earthdata Search Client and USGS' GloVis. New scenes will be added as they are acquired and archived.
The AST_L1T product provides a quick turn-around of consistent GIS-ready data as a multifile product, including: a Hierarchical Data Format – Earth Observing System datafile, full-resolution composite GeoTIFFs, and associated metadata files. In addition, each AST_L1T granule contains related products such as a low-resolution browse and when applicable, a Quality Assurance browse and text report.
Learn more about ASTER data and the change in policy here.
Surveying User Satisfaction: The NASA DAAC Experience
A Blog post by Alex de Sherbinin (WDS Scientific Committee member)
It is often said—disparagingly—that America’s culture is a consumer culture. Although it may be true that America’s consumerism is problematic, not least for the planet, the flip side is how consumer culture drives a service mentality in businesses and government. The old adage that “the customer is king” does motivate US government agencies and government-supported centers, including NASA’s Distributed Active Archive Centers (DAACs), to innovate and improve services in response to user feedback and evolving user needs.
Since 2004, NASA’s Earth Science Data and Information System (ESDIS) Project [WDS Network Member] has commissioned the CFI Group to conduct an annual customer satisfaction survey of users of Earth Observing System Data and Information System (EOSDIS) data and services available through the twelve DAACs. The American Customer Satisfaction Index (ACSI) is a uniform, cross-industry measure of satisfaction with goods and services available to US consumers, including both the private and public sectors. The ACSI represents an important source of information on user satisfaction and needs that feeds into DAAC operations and evolution. This may hold some lessons for WDS data services more broadly as they seek feedback from their users, and endeavor to expand their user bases and justify funding support.
The ACSI survey invitation is sent to anyone who has registered to download data from the NASA DAACs. In the past registration was ad hoc, and each DAAC had its own system. In early 2015, ESDIS began implementing a uniform user registration system called EarthData Login that requires that users establish a free account before they can access datasets. Accounts are associated with a given DAAC, but they allow access to data across all the DAACs. All those who register are sent invitations to fill out the ACSI survey. Response rates vary from a few percent among most DAACs, to as high as 38% for the Land Processes DAAC [WDS Regular Member] (which also has the highest number of respondents at just over 2,000).
In 2015, the overall EOSDIS ACSI was 77 out of 100, which is better then the overall government and National ACSI scores for 2015 (64 and 74, respectively), but lower than the National Weather Service (80). This score is based on users’ overall assessment of satisfaction with each data center based on expectations and comparison with an “ideal” data center. The ACSI model provided by the CFI Group also assesses specific “drivers” of user satisfaction—customer support, product search, product selection and order, product documentation, product quality, and data delivery—and their relative importance to the overall ACSI score. This allows the DAACs to identify areas where improvement is needed and should have the most impact on overall satisfaction.
The ACSI enables the EOSDIS to assess changes from year to year. For example, from 2014 to 2015 customer support went from 89 to 86, with drops in professionalism, technical knowledge, helpfulness in correcting a problem, and timeliness of response (all statistically significant). Many changes likely reflect the fact that the pool of survey respondents changes over time, as do their expectations, rather than actual drops in service provision. But for individual DAACs, declining scores in certain areas, in combination with free-text responses to open-ended questions, can help to flag issues that are in need of attention.
For example, the ACSI scores and free-text responses to open-ended questions helped our DAAC—the Socioeconomic Data and Applications Center (SEDAC) [WDS Regular Member]—in undertaking a major website overhaul in 2011. From a disparate set of pages with different designs, we created a coherent site with consistent navigation. The resulting site was evaluated very favorably by Blink UX, a user experience evaluation firm that reviewed all of the DAAC websites. Deficiencies in data documentation for selected datasets have also been pointed out by survey respondents, and we are now reviewing our guidelines for documentation to ensure that all datasets meet a minimum standard. Some users indicated difficulty in finding the latest dataset releases, so we are developing an email alert system for new data releases.
At the Alaska Satellite Facility (ASF) DAAC [WDS Regular Member], the ACSI results have been very helpful in getting a sense of how people are using ASF DAAC data and services. The free-text responses to questions regarding new data, services, search capabilities, and data formats are particularly informative. For example, one user suggested that it would be useful to have quick access to Synthetic Aperture Radar data for specific regions in the world for disaster response. A data feed was developed after the recent Nepal earthquake that notified users of any new Sentinel-1A data received at ASF DAAC for that specific area. This data feed quickly provided additional data for disaster responders and researchers studying this event. Data feeds are now available for several seismically active areas of the world that have been designated by the scientific community (i.e., Supersites).
Overall, the strong EOSDIS ACSI scores have been important in objectively demonstrating and documenting the continuing value of EOSDIS and the individual DAACs to the broad user community. The annual score is reported as one of NASA’s annual performance metrics, supporting NASA’s goal to provide results-driven management focused on optimizing value to the American public.
Although surveys can be costly, and the response rates low, WDS Members would do well to consider periodic surveys of users. We find that highly motivated users do respond and provide really useful suggestions, especially if they find that their responses actually lead to tangible changes in their user experience. While annual surveys may be more than is needed, surveys every 2–3 years could provide your data service with valuable feedback on its content and services. And of course, none of this should supplant other mechanisms for gathering user feedback, such as help desk software (e.g., UserVoice used by SEDAC or Kayako used by NASA’s EarthData), email, and telephone helplines. Through these multiple mechanisms, our user communities can help drive significant improvements in the services offered by WDS Members and the successful use of our valuable data by growing numbers of users.
WGMS Glacier App – Worldwide Glacier Information System To Go!
Which glaciers are still advancing?
How many are melting?
Which glaciers are being monitored in your country?
A new smartphone application from the World Glacier Monitoring Service (WGMS; WDS Regular Member) shows how glaciers have evolved around the globe. It provides easy and public access to glacier observation data and photographs of more than 3700 glaciers. The wgms Glacier App—recently launched at a side-event of COP21—is based on a comprehensive research database and aims at bringing corresponding facts and figures to decision makers, to outdoor people, researchers, and anybody interested in the topic, in order to provide information and raise awareness of ongoing climatic changes.
The wgms Glacier App shows all observed glaciers on a satellite map. Basic information is provided for each glacier, including photographs and general information on size and elevation. A text search allows users to filter the glaciers by name, country, region, and measurement type. For example, one can find out which glaciers have gained or lost ice over the past decade. A compass shows the closest observed glaciers in all directions from the user’s current position, and a 'card game' (Glacier Top Trumps) enables users to compare the best observed glaciers in the world and compete against the computer. In addition, graphs with observation data illustrate the glacier's development, along with information on local investigators, and detailed explanations of measurement types. WGMS wants to increase the visibility of the hundreds of glacier observers around the globe whose work documents the impact of climate change on glaciers.
How to Compromise Data Quality and Service of Data From the 'Dark Long Tail'
A Blog post by Toshihiko Iyemori (WDS-SC)
The WDS Scientific Committee (WDS-SC) requests WDS Members to maintain the quality of their data and services. Another important task for the WDS-SC is to recruit data centres from various disciplines, as many and wide as possible, to serve their data to promote science—in particular interdisciplinary science. However, based on my experiences as a researcher of Solar–Terrestrial Physics and as Director of the World Data Centre for Geomagnetism, Kyoto (WDS Regular Member), I believe that we have one more important task for promoting science: collecting and serving useful data from the 'dark long tail' of datasets.
There are a huge number of datasets—mainly obtained on a research project basis—that are not registered to active data centres, and hence are 'dark' to many of us. These datasets are typically built by small research groups for a limited period, and data quality checks are often not sufficient. Although their quality may not be good and they exist only for a limited period, such data are very important and useful if the location of observation site is highly unique, or if other observations are not available.
We know of many such 'dark long tail' datasets, and some have been sent to our data centre, but even if we find them and can ingest them, we often have difficulty to keep (or to confirm) their quality. Nevertheless, my personal opinion is that these data should also be served by WDS Members, even if they conflict with the membership requirements of WDS.
One way to compromise for the data quality and service of data from the 'dark long tail' is to register metadata that describe the observations in as much detail as possible. An example of this in practice is IUGONET (Interuniversity Upper atmosphere Global Observation NETwork), which has a common database of metadata and forms a virtual data centre of distributed databases at several institutions. This data system includes databases from the 'dark long tail', as well as large well-known databases.
The WDS-SC and WDS Member Organizations must therefore take action (and advocate) to ensure such 'dark' datasets are registered in appropriate data centres or systems with adequate metadata to make them useful. Otherwise, I have a concern that they may just be kept by each institutional repository in a way that cannot be exploited or could even be lost forever.
To improve the situation domestically, we held two workshops at Kyoto University last autumn that explored possibilities for collaboration among Japanese university libraries, informatics experts, and research scientists. University libraries in Japan are not very positive in general about functioning as repositories for scientific data. In contrast, some researchers are actively trying to develop the related technology or systems for that to happen. Moreover, a Japanese endeavour to register datasets and attach Digital Object Identifiers started last year. My hope is that these activities grow and form a stream of open data from the 'dark long tail'.