Data · collection · 2004
Natural Freeze-drying of Water-degraded Timber Structures: Feasibility Study
Listed in NASA Earthdata CMR
The objectives of this project were: To gather data from a small scale experimental freeze-drying unit, using natural local conditions, with a view to extending the experiment to a larger scale installation sufficient to deal with timbers from archaeological shipwrecks and other timber constructions.
Description
The climate of the Vestfold Hills at Davis Base is exceptionally dry and, apart from a short summer period, the temperature is below freezing.
The dryness and the low temperature of the area makes it a theoretically ideal location to naturally freeze-dry large water-logged wooden items. A small 2m3 container housing a selection of waterlogged wood has been installed below ground level. Water vapour from the frozen samples is extracted by a wind driven venturi system.
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Changes in temperature, sample weight, and air pressure are logged and the data are transferred regularly to Canberra. The fields in this dataset are: Date Time Temperature Atmospheric Pressure Ice Weight Wood Weight Windspeed
Links
Get the data
- Download point for the data. data.aad.gov.au/aadc/portal/download_file.cfm?file_id=1505 ↗
download · from NASA CMR
Where it is published
- DOI doi.org/10.4225/15/55ed1b3e444fb ↗
DOI / persistent id · from NASA CMR
Documentation and papers
- data.aad.gov.au /aadc/metadata/citation.cfm?entry_id=ASAC_156 ↗
Citation reference for this metadata record and dataset
documentation · from NASA CMR
- Public information for ASAC project 156 secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=156 ↗
project · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214305795-AU_AADC.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214305795-AU_AADC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- ANEMOMETERS · ANEROID PRESSURE SENSOR · Buildings · HUMIDITY SENSORS · Not provided · TEMPERATURE SENSORS
- Inferred from text
- Physical geography and environmental geoscience 72%
Provenance · 1 source records, 15 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214305795-AU_AADC | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3709 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (72%) |
| concepts[instrument].gcmd_instrument:anemometers | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:aneroid-pressure-sensor | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:humidity-sensors | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:temperature-sensors | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/human-dimensions/infrastructure/buildings | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-provided | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |