Complementarity of wind measurements from co-located X-band weather radar and Doppler lidar
<p>Accurate wind profile measurements are important for applications ranging from aviation to numerical weather prediction. The spatial pattern of winds can be obtained with ground-based remote sensing instruments, such as weather radars and Doppler lidars. As the return signal in weather rada...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2022-11-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | https://amt.copernicus.org/articles/15/6507/2022/amt-15-6507-2022.pdf |
| _version_ | 1798015407882240000 |
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| author | J. Ritvanen J. Ritvanen E. O'Connor D. Moisseev D. Moisseev R. Lehtinen J. Tyynelä L. Thobois |
| author_facet | J. Ritvanen J. Ritvanen E. O'Connor D. Moisseev D. Moisseev R. Lehtinen J. Tyynelä L. Thobois |
| author_sort | J. Ritvanen |
| collection | DOAJ |
| description | <p>Accurate wind profile measurements are important for applications ranging from aviation to numerical weather prediction. The spatial pattern of winds can be obtained with ground-based remote sensing instruments, such as weather radars and Doppler lidars. As the return signal in weather radars is mostly due to hydrometeors or insects, and in Doppler lidars due to aerosols, the instruments provide wind measurements in different weather conditions. However, the effect of various weather conditions on the measurement capabilities of these instruments has not been previously extensively quantified. Here we present results from a 7-month measurement campaign that took place in Vantaa, Finland, where a co-located Vaisala WRS400 X-band weather radar and WindCube 400S Doppler lidar were employed continuously to perform wind measurements. Both instruments measured plan position indicator (PPI) scans at 2.0<span class="inline-formula"><sup>∘</sup></span> elevation from the horizontal. Direct comparison of radial Doppler velocities from both instruments showed good agreement with <span class="inline-formula"><i>R</i><sup>2</sup>=0.96</span>. We then examined the effect of horizontal visibility, cloud base height, and precipitation intensity on the measurement availability of each instrument. The Doppler lidar displayed good availability in clear air situations and the X-band radar in precipitation. Both instruments exhibited high availability in clear air conditions in summer when insects were present. The complementary performance in the measurement availability of the two instruments means that their combination substantially increases the spatial coverage of wind observations across a wide range of weather conditions.</p> |
| first_indexed | 2024-04-11T15:32:54Z |
| format | Article |
| id | doaj.art-e5f6e5b813cd46f6995f3dfe93e6a7a3 |
| institution | Directory Open Access Journal |
| issn | 1867-1381 1867-8548 |
| language | English |
| last_indexed | 2024-04-11T15:32:54Z |
| publishDate | 2022-11-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Measurement Techniques |
| spelling | doaj.art-e5f6e5b813cd46f6995f3dfe93e6a7a32022-12-22T04:16:05ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482022-11-01156507651910.5194/amt-15-6507-2022Complementarity of wind measurements from co-located X-band weather radar and Doppler lidarJ. Ritvanen0J. Ritvanen1E. O'Connor2D. Moisseev3D. Moisseev4R. Lehtinen5J. Tyynelä6L. Thobois7Finnish Meteorological Institute, Helsinki, FinlandInstitute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, Helsinki, FinlandFinnish Meteorological Institute, Helsinki, FinlandFinnish Meteorological Institute, Helsinki, FinlandInstitute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, Helsinki, FinlandVaisala Oyj, Vantaa, FinlandFinnish Meteorological Institute, Helsinki, FinlandVaisala France SAS, Paris-Saclay, France<p>Accurate wind profile measurements are important for applications ranging from aviation to numerical weather prediction. The spatial pattern of winds can be obtained with ground-based remote sensing instruments, such as weather radars and Doppler lidars. As the return signal in weather radars is mostly due to hydrometeors or insects, and in Doppler lidars due to aerosols, the instruments provide wind measurements in different weather conditions. However, the effect of various weather conditions on the measurement capabilities of these instruments has not been previously extensively quantified. Here we present results from a 7-month measurement campaign that took place in Vantaa, Finland, where a co-located Vaisala WRS400 X-band weather radar and WindCube 400S Doppler lidar were employed continuously to perform wind measurements. Both instruments measured plan position indicator (PPI) scans at 2.0<span class="inline-formula"><sup>∘</sup></span> elevation from the horizontal. Direct comparison of radial Doppler velocities from both instruments showed good agreement with <span class="inline-formula"><i>R</i><sup>2</sup>=0.96</span>. We then examined the effect of horizontal visibility, cloud base height, and precipitation intensity on the measurement availability of each instrument. The Doppler lidar displayed good availability in clear air situations and the X-band radar in precipitation. Both instruments exhibited high availability in clear air conditions in summer when insects were present. The complementary performance in the measurement availability of the two instruments means that their combination substantially increases the spatial coverage of wind observations across a wide range of weather conditions.</p>https://amt.copernicus.org/articles/15/6507/2022/amt-15-6507-2022.pdf |
| spellingShingle | J. Ritvanen J. Ritvanen E. O'Connor D. Moisseev D. Moisseev R. Lehtinen J. Tyynelä L. Thobois Complementarity of wind measurements from co-located X-band weather radar and Doppler lidar Atmospheric Measurement Techniques |
| title | Complementarity of wind measurements from co-located X-band weather radar and Doppler lidar |
| title_full | Complementarity of wind measurements from co-located X-band weather radar and Doppler lidar |
| title_fullStr | Complementarity of wind measurements from co-located X-band weather radar and Doppler lidar |
| title_full_unstemmed | Complementarity of wind measurements from co-located X-band weather radar and Doppler lidar |
| title_short | Complementarity of wind measurements from co-located X-band weather radar and Doppler lidar |
| title_sort | complementarity of wind measurements from co located x band weather radar and doppler lidar |
| url | https://amt.copernicus.org/articles/15/6507/2022/amt-15-6507-2022.pdf |
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