Table 1
Metadata elements for the Global Disaster Data Master Directory.
| NUMBER | ELEMENT | DESCRIPTION | MANDATORY |
|---|---|---|---|
| 1 | Dataset name | Unique identity name of the dataset | Yes |
| 2 | Subject classification | Data classification within specific fields or subjects | Yes |
| 3 | Data sources | Original source or production agency information of the dataset | Yes |
| 4 | Spatial coverage | Spatial scope covered by the data, including longitude and latitude coordinates and administrative divisions | Yes |
| 5 | Temporal coverage | Time span of the data, including the start and end time | Yes |
| 6 | Resolution | Spatial resolution and time granularity of the data, such as hours, days, or months | Yes |
| 7 | Data type | The nature of the data, such as remote sensing images, vector data, and text data | Yes |
| 8 | Data format | Storage formats of the data, such as GeoTIFF, Shapefile, and CSV | Yes |
| 9 | Variable description | Description of each variable in the dataset, including name, type, and unit | Yes |
| 10 | Abstract | Basic information of the data, usually comprehensive and specific | Yes |
| 11 | Keyword | Words or phrases used for retrieving | Yes |
| 12 | Data service type | Description of the data access approaches, such as data file, database, and map access | Yes |
| 13 | Data sharing policy | Description of the rules and procedures for data sharing | Yes |
| 14 | Metadata created date | Record of the date of the creation of the metadata | Yes |
| 15 | Metadata update time | Last update time record of the metadata | Yes |
| 16 | Data responsible unit | Personnel or agency designation responsible for the update and maintenance of metadata | Yes |
Figure 1
System architecture diagram of the GDMD.
Table 2
Classification of disaster data in GDMD.
| LEVEL 1 CLASS | SECOND CLASS | LEVEL 1 CLASS | SECOND CLASS |
|---|---|---|---|
| Geohazards | Earthquake | Hydrometeorological hazards | Drought (hydrological, meteorological, agricultural, socio-economic) |
| Volcanic | Flood | ||
| Ground collapse | Typhoon | ||
| Collapse | Rainstorm | ||
| Landslide | Low temperature | ||
| Ground subsidence | Wind | ||
| Mudslide | Hail | ||
| Ground fissuring | Lightning | ||
| Others | Sand-dust storm | ||
| Maine hazards | Storm tide | Snow storm | |
| Ocean wave | High temperature | ||
| Sea ice | Fog | ||
| Tsunami | Others | ||
| Others | Technological hazards | CBRNE (chemical, biological, radiation, nuclear, or explosion) | |
| Biological hazards | Plant pests | Infrastructure failure | |
| Disease | Cyber hazard | ||
| Rodent pest | Industrial failure/Non-compliance | ||
| Weed | Waste | ||
| Red tide | Transportation | ||
| Wildfires | Others | ||
| Others | Societal hazards | Conflict | |
| Environmental hazards | Water and soil loss | Post-conflict | |
| Desertification | Behavioral | ||
| Salinization | Economic | ||
| Stony desertification | Others | ||
| Others | Other | Others |
Figure 2
Data compilation diagram of GDMD.
Figure 3
Main interface of the GDMD prototype.
Figure 4
Joint data retrieval by geographic location or attributes.
Figure 5
IKCEST-DRR self-built data-map of the drought distribution data set in the Mongolian Plateau from 1981–2012.
Table 3
Metadata table of Hangzhou rime disaster from 1997–2013.
| FIELD_NAME | METADATA DESCRIPTION |
|---|---|
| Title | Fog and Rime disaster in Hangzhou 1997–2013 |
| Identifier | drrks-9cd36 |
| Abstract | Fog and Rime disaster in Hangzhou 1997–2013 covers the major fog and haze disasters since 1997, mainly including the time, date, and visibility of fog and haze disasters in Hangzhou. |
| Xml | <csw:SummaryRecord xmlns:csw = “http://www.opengis.net/cat/csw/2.0.2” xmlns:dc = “http://purl.org/dc/elements/1.1/” xmlns:dct = “http://purl.org/dc/terms/” xmlns:gmd = “http://www.isotc211.org/2005/gmd” xmlns:gml = “http://www.opengis.net/gml” xmlns:gml32 = “http://www.opengis.net/gml/3.2” xmlns:ows = “http://www.opengis.net/ows” xmlns:xs = “http://www.w3.org/2001/XMLSchema” xmlns:xsi = “http://www.w3.org/2001/XMLSchema-instance”> <dc:identifier>drrks-9cd36</dc:identifier><dc:title>Fog and Rime disaster in Hangzhou 1997–2013</dc:title><dc:type/><dct:abstract>Fog and Rime disaster in Hangzhou 1997–2013 mainly covers the major fog and haze disasters since 1997, mainly including the time, date and visibility of fog and haze disasters in Hangzhou.</dct:abstract></csw:SummaryRecord> |