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Search results for: "keyword:"fog""

Overview

1-10 of 10 datasets.

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» Yearly low stratus and ground fog frequency maps of Taiwan (2003-2012) created by: Alexander Groos, Boris Thies, Martin Schulz (last update: 2016-12-23)

» Daily masks of ground fog in the taiwanese mountains (2002 - 2014) created by: Martin Schulz (last update: 2017-02-23)

» Linden - Lufttemperatur und rel. Luftfeuchte in 2m und 10m Höhe created by: Boris Thies, Maik Dobbermann (last update: 2024-04-16)

» Fog drop size distributions at the Marburg Ground Truth and Profiling Station in Linden-Leihgestern, Germany created by: Boris Thies, Sebastian Egli, Sebastian Achilles (last update: 2017-08-16)

» Fog frequencies in Europe (monthly means) created by: Sebastian Egli (last update: 2018-04-17)

» Fog and Low Stratus mask (Europe) created by: Sebastian Egli (last update: 2017-06-06)

Detailed view

Yearly low stratus and ground fog frequency maps of Taiwan (2003-2012)

Dataset ID:	151
Last updated:	2016-12-23
Dataset creators:	Alexander Groos Boris Thies Martin Schulz
Contact:	Martin Schulz Boris Thies
Temporal coverage:	2003-01-01 00:00:00 - 2012-12-31 00:00:00 - time zone: Asia/Taipei
Geographic coverage:	Taiwan
Abstract:	The relationship between satellite-derived low clo... Abstract: The relationship between satellite-derived low cloud frequency and the occurrence of tropical montane cloud forest (TMCF) in Taiwan was investigated. From daily MODIS cloud mask products between 2003 and 2012 the low cloud class was extracted and mean low cloud frequency was calculated for Taiwan. This low cloud frequency map was blended with an existing plot-based vegetation classification for Taiwan to analyze the relationship between low cloud frequency and TMCF occurrence. Receiver operating characteristics curves and the area under the ROC curve (AUC) were used to analyze if a relationship exists. No relationship was found for all four TMCF types taken together (AUC = 0.61) and for the dominant TMCF type, Quercus montane evergreen broad-leaved cloud forest (AUC = 0.5). Strong relationships were found for the two spatially-restricted TMCF types, Fagus montane deciduous broad-leaved cloud forest (AUC = 0.91) and Pasania-Elaeocarpus montane evergreen broad-leaved forest (AUC = 0.84), as well as for the second dominant type Chamaecyparis montane mixed cloud forest (AUC = 0.74). The results show that low cloud frequency thresholds might be associated with specific cloud forest types in Taiwan. Further studies should incorporate information about cloud base height, cloud density, and cloud immersion time as well as satellite-based cloud frequency information with a higher temporal resolution. Combination with satellite-based land cover classifications for Taiwan would allow quasi-continuous observation of TMCF changes. Such knowledge would be the precondition for effective protective actions concerning this exceptional but threatened ecosystem.
Additional info:	http://dx.doi.org/10.3390/rs71012986... Additional info: http://dx.doi.org/10.3390/rs71012986
Keywords:	\| Taiwan \| cloud forest \| fog \| ground fog detection \| ground fog frequency \|
DOI:	10.5678/LCRS/DAT.151
Intellectual rights:	PAK 823-825 data user agreement. (www.lcrs.de/dataagreementp3.do)

Entity name:	cloudmasktaiwan
Entity info:	Zip file containing yearly geo tiffs and an aggregated image
Entity type:	otherEntity
Attributes:	Low stratus and ground fog frequency (lowstratusandgroundfogfrequency) [Unitless]

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Daily masks of ground fog in the taiwanese mountains (2002 - 2014)

Dataset ID:	287
Last updated:	2017-02-23
Dataset creators:	Martin Schulz
Contact:	Martin Schulz
Temporal coverage:	2002-01-01 00:00:00 - 2014-12-31 00:00:00 - time zone: Europe/Berlin
Geographic coverage:	Taiwan
Abstract:	Masks of ground fog in the taiwanese mountains (20... Abstract: Masks of ground fog in the taiwanese mountains (2002 - 2014) processed based on data of all MODIS overflights using the algorithm DOGMA (Schulz, M.; Thies, B.; Chang, S. & Bendix, J. (2016): Detection of ground fog in mountainous areas from MODIS (Collection 051) daytime data using a statistical approach. Atmospheric Measurement Techniques 9, 1135 - 1152 DOI: http://dx.doi.org/10.5194/amt-9-1135-2016.)
Additional info:	--- Additional info:
Keywords:	\| Fog detection \| MODIS \| Taiwan \| fog \| ground fog \| ground fog detection \| fog remote sensing \| TERRA/AQUA-MODIS \| fog mapping \|
Intellectual rights:	FOG 816 data user agreement

Entity name:	ground fog masks Taiwan
Entity info:	Masks of ground fog in the taiwanese mountains (2002 - 2014) based on MODIS data
Entity type:	otherEntity

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Linden - Lufttemperatur und rel. Luftfeuchte in 2m und 10m Höhe

Dataset ID:	305
Last updated:	2024-04-16
Dataset creators:	Boris Thies Maik Dobbermann
Contact:	Boris Thies Sebastian Achilles
Temporal coverage:	2011-05-24 00:05:00 - 2024-04-15 23:59:00 - time zone: Europe/Berlin
Geographic coverage:	Linden
Abstract:	--- Abstract:
Additional info:	Raw data extracted from binary data. Initial visua... Additional info: Raw data extracted from binary data. Initial visual control only. Use data with great care, errors might be included.
Keywords:	\| fog \| Linden \| micro climate \|
Intellectual rights:	LCRS

Entity name:	CR1000_base+pluvio_CRLinden 2017
Entity type:	dataTable
Attributes:	Date and Time (datetime) (Unitless) Record number (record) [Count] Air temperature in 10m height (Ta_10m) [Degrees Celsius] air temperature in 2m (Ta_2m) [Degrees Celsius] Relative air humidity in 10 meter height (Huma_10m) [Percent] Air humidity 2m (Huma_2m) [Percent]

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Fog drop size distributions at the Marburg Ground Truth and Profiling Station in Linden-Leihgestern, Germany

Dataset ID:	295
Last updated:	2017-08-16
Dataset creators:	Boris Thies Sebastian Egli Sebastian Achilles
Contact:	Boris Thies Sebastian Egli
Temporal coverage:	2011-10-26 00:00:00 - 2011-11-14 00:00:00 - time zone: Europe/Berlin
Geographic coverage:	Giessen FACE
Abstract:	--- Abstract:
Additional info:	see article: The Influence of Drop Size Distributi... Additional info: see article: The Influence of Drop Size Distributions on the Relationship between Liquid Water Content and Radar Reflectivity in Radiation Fogs http://dx.doi.org/10.3390/atmos8080142
Keywords:	\| fog \| drop size distribution \| Linden \|
Intellectual rights:	LCRS

Entity name:	fog1min_dsd
Entity type:	otherEntity

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Fog frequencies in Europe (monthly means)

Dataset ID:	311
Last updated:	2018-04-17
Dataset creators:	Sebastian Egli
Contact:	Sebastian Egli
Temporal coverage:	2006-01-01 00:00:00 - 2015-12-31 23:45:00 - time zone: Europe/Berlin
Geographic coverage:	Europe
Abstract:	This dataset contains monthly average fog frequenc... Abstract: This dataset contains monthly average fog frequencies for Europe. Time period covered: 2006-01-01 to 2015-12-31 The masks are based on Meteosat Second Generation data that were processed based on the algorithm described in Egli, S., Thies, B. & Bendix, J. (2018). A Hybrid Approach for Fog Retrieval Based on a Combination of Satellite and Ground Truth Data. Remote Sensing. 2018.
Additional info:	--- Additional info:
Keywords:	\| Fog detection \| fog \| retrieval of fog \| satellite climatology of fog \| fog remote sensing \|
DOI:	10.5678/LCRS/DAT.311
Intellectual rights:	LCRS

Entity name:	fog_product_monthly_means
Entity type:	otherEntity

Entity name:	Fog frequency as NetCDF
Entity type:	otherEntity

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Fog and Low Stratus mask (Europe)

Dataset ID:	291
Last updated:	2017-06-06
Dataset creators:	Sebastian Egli
Contact:	Sebastian Egli
Temporal coverage:	2006-01-01 00:00:00 - 2015-12-31 00:00:00 - time zone: Europe/London
Geographic coverage:	Europe
Abstract:	This dataset contains masks of Fog and Low Stratus... Abstract: This dataset contains masks of Fog and Low Stratus (FLS) for Europe. Time period covered: 2006-01-01 to 2015-12-31 The masks are based on Meteosat Second Generation data that were processed based on the algorithm described in Egli, S., Thies, B., Drönner, J., Cermak, J., & Bendix, J. (2017). A 10 year fog and low stratus climatology for Europe based on Meteosat Second Generation data. Quarterly Journal of the Royal Meteorological Society, 143(702), 530–541. http://doi.org/10.1002/qj.2941.
Additional info:	--- Additional info:
Keywords:	\| Fog detection \| fog \| satellite climatology of fog \| fog remote sensing \| fog and low stratus detection \| FLS \|
Intellectual rights:	FOR 816 data user agreement

Entity name:	2006 - 2015
Entity info:	Fog and Low Stratus mask for Europe
Entity type:	otherEntity

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