HELIOS, a nadir-looking sea ice monitoring camera
We present the prototype of a simplified photogrammetric system (HELicopter-borne Ice Observation System, HELIOS) and demonstrate how it can be used to document ground-based and airborne sea ice surveys. The aerial unit consists of a nadir-looking digital camera mounted on a gimbal, a GPS receiver a...
Published in: | Cold Regions Science and Technology |
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2011
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ftoceanrep:oai:oceanrep.geomar.de:28499 2023-05-15T18:17:16+02:00 HELIOS, a nadir-looking sea ice monitoring camera Krumpen, Thomas Haas, Christian Hendricks, Stefan Hölemann, Jens A. Kalmbach, Drik Gerdes, Rüdiger 2011 text https://oceanrep.geomar.de/id/eprint/28499/ https://oceanrep.geomar.de/id/eprint/28499/1/2011_Krumpen-etal-HELIOS_CRST-65.pdf https://doi.org/10.1016/j.coldregions.2010.11.007 en eng Elsevier https://oceanrep.geomar.de/id/eprint/28499/1/2011_Krumpen-etal-HELIOS_CRST-65.pdf Krumpen, T., Haas, C., Hendricks, S., Hölemann, J. A., Kalmbach, D. and Gerdes, R. (2011) HELIOS, a nadir-looking sea ice monitoring camera. Open Access Cold Regions Science and Technology, 65 (3). pp. 308-313. DOI 10.1016/j.coldregions.2010.11.007 <https://doi.org/10.1016/j.coldregions.2010.11.007>. doi:10.1016/j.coldregions.2010.11.007 cc_by_nc_3.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2011 ftoceanrep https://doi.org/10.1016/j.coldregions.2010.11.007 2023-04-07T15:18:57Z We present the prototype of a simplified photogrammetric system (HELicopter-borne Ice Observation System, HELIOS) and demonstrate how it can be used to document ground-based and airborne sea ice surveys. The aerial unit consists of a nadir-looking digital camera mounted on a gimbal, a GPS receiver and a computer. It is of low-cost and weight and is designed such that it withstands low temperatures, operates autonomously and fits to any standard helicopter skid. The accuracy of the georeferenced photographs is about ± 15 m for a flight height of 85 m, flight speed of 130 km/h and a GPS sampling rate of 4 Hz. Systematic errors arise from the GPS-based determination of the camera position, the pointing accuracy of the gimbal, and the camera alignment in flight direction. Because most sea ice mapping projects require lesser accuracies than conventional mapping standards (e.g. ≤ 0.5 m for a map scale of 1:600, ASPRS (1994)), HELIOS offers a broad range of applications. This includes the photogrammetric documentation of experimental sites as well as the verification of satellite-, and model-based estimates of sea ice and snow cover properties. Images taken simultaneously with other airborne observations provide a valuable tool to assess the accuracy of those measurements. Article in Journal/Newspaper Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Helios ENVELOPE(162.317,162.317,-77.450,-77.450) Cold Regions Science and Technology 65 3 308 313 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
We present the prototype of a simplified photogrammetric system (HELicopter-borne Ice Observation System, HELIOS) and demonstrate how it can be used to document ground-based and airborne sea ice surveys. The aerial unit consists of a nadir-looking digital camera mounted on a gimbal, a GPS receiver and a computer. It is of low-cost and weight and is designed such that it withstands low temperatures, operates autonomously and fits to any standard helicopter skid. The accuracy of the georeferenced photographs is about ± 15 m for a flight height of 85 m, flight speed of 130 km/h and a GPS sampling rate of 4 Hz. Systematic errors arise from the GPS-based determination of the camera position, the pointing accuracy of the gimbal, and the camera alignment in flight direction. Because most sea ice mapping projects require lesser accuracies than conventional mapping standards (e.g. ≤ 0.5 m for a map scale of 1:600, ASPRS (1994)), HELIOS offers a broad range of applications. This includes the photogrammetric documentation of experimental sites as well as the verification of satellite-, and model-based estimates of sea ice and snow cover properties. Images taken simultaneously with other airborne observations provide a valuable tool to assess the accuracy of those measurements. |
format |
Article in Journal/Newspaper |
author |
Krumpen, Thomas Haas, Christian Hendricks, Stefan Hölemann, Jens A. Kalmbach, Drik Gerdes, Rüdiger |
spellingShingle |
Krumpen, Thomas Haas, Christian Hendricks, Stefan Hölemann, Jens A. Kalmbach, Drik Gerdes, Rüdiger HELIOS, a nadir-looking sea ice monitoring camera |
author_facet |
Krumpen, Thomas Haas, Christian Hendricks, Stefan Hölemann, Jens A. Kalmbach, Drik Gerdes, Rüdiger |
author_sort |
Krumpen, Thomas |
title |
HELIOS, a nadir-looking sea ice monitoring camera |
title_short |
HELIOS, a nadir-looking sea ice monitoring camera |
title_full |
HELIOS, a nadir-looking sea ice monitoring camera |
title_fullStr |
HELIOS, a nadir-looking sea ice monitoring camera |
title_full_unstemmed |
HELIOS, a nadir-looking sea ice monitoring camera |
title_sort |
helios, a nadir-looking sea ice monitoring camera |
publisher |
Elsevier |
publishDate |
2011 |
url |
https://oceanrep.geomar.de/id/eprint/28499/ https://oceanrep.geomar.de/id/eprint/28499/1/2011_Krumpen-etal-HELIOS_CRST-65.pdf https://doi.org/10.1016/j.coldregions.2010.11.007 |
long_lat |
ENVELOPE(162.317,162.317,-77.450,-77.450) |
geographic |
Helios |
geographic_facet |
Helios |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/28499/1/2011_Krumpen-etal-HELIOS_CRST-65.pdf Krumpen, T., Haas, C., Hendricks, S., Hölemann, J. A., Kalmbach, D. and Gerdes, R. (2011) HELIOS, a nadir-looking sea ice monitoring camera. Open Access Cold Regions Science and Technology, 65 (3). pp. 308-313. DOI 10.1016/j.coldregions.2010.11.007 <https://doi.org/10.1016/j.coldregions.2010.11.007>. doi:10.1016/j.coldregions.2010.11.007 |
op_rights |
cc_by_nc_3.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.coldregions.2010.11.007 |
container_title |
Cold Regions Science and Technology |
container_volume |
65 |
container_issue |
3 |
container_start_page |
308 |
op_container_end_page |
313 |
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1766191377835622400 |