{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,17]],"date-time":"2026-01-17T20:24:35Z","timestamp":1768681475194,"version":"3.49.0"},"reference-count":63,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2021,6,12]],"date-time":"2021-06-12T00:00:00Z","timestamp":1623456000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100000192","name":"National Oceanic and Atmospheric Administration","doi-asserted-by":"publisher","award":["NA19OAR4320073"],"award-info":[{"award-number":["NA19OAR4320073"]}],"id":[{"id":"10.13039\/100000192","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["2018YFC1507502"],"award-info":[{"award-number":["2018YFC1507502"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["42005109"],"award-info":[{"award-number":["42005109"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>The seasonal variations of raindrop size distribution (DSD) and rainfall are investigated using three-year (2016\u20132018) observations from a two-dimensional video disdrometer (2DVD) located at a suburban station (40.13\u00b0 N, 116.62\u00b0 E, ~30 m AMSL) in Beijing, China. The annual distribution of rainfall presents a unimodal distribution with a peak in summer with total rainfall of 966.6 mm, followed by fall. Rain rate (R), mass-weighted mean diameter (Dm), and raindrop concentration (Nt) are stratified into six regimes to study their seasonal variation and relative rainfall contribution to the total seasonal rainfall. Heavy drizzle\/light rain (R2: 0.2~2.5 mm h\u22121) has the maximum occurrence frequency throughout the year, while the total rainfall in summer is primarily from heavy rain (R4: 10~50 mm h\u22121). The rainfall for all seasons is contributed primarily from small raindrops (Dm2: 1.0~2.0 mm). The distribution of occurrence frequency of Nt and the relative rainfall contribution exhibit similar behavior during four seasons with Nt of 10~1000 m\u22123 registering the maximum occurrence and rainfall contributions. Rainfall in Beijing is dominated by stratiform rain (SR) throughout the year. There is no convective rainfall (CR) in winter, i.e., it occurs most often during summer. DSD of SR has minor seasonal differences, but varies significantly in CR. The mean values of log10Nw (Nw: mm\u22121m\u22123, the generalized intercept parameter) and Dm of CR indicate that the CR during spring and fall in Beijing is neither continental nor maritime, at the same time, the CR in summer is close to the maritime-like cluster. The radar reflectivity (Z) and rain rate (R) relationship (Z = aRb) showed seasonal differences, but were close to the standard NEXRAD Z-R relationship in summer. The shape of raindrops observed from 2DVD was more spherical than the shape obtained from previous experiments, and the effect of different axis ratio relations on polarimetric radar measurements was investigated through T-matrix-based scattering simulations.<\/jats:p>","DOI":"10.3390\/rs13122303","type":"journal-article","created":{"date-parts":[[2021,6,14]],"date-time":"2021-06-14T22:25:46Z","timestamp":1623709546000},"page":"2303","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Microphysical Characteristics of Rainfall Observed by a 2DVD Disdrometer during Different Seasons in Beijing, China"],"prefix":"10.3390","volume":"13","author":[{"given":"Li","family":"Luo","sequence":"first","affiliation":[{"name":"Institute of Urban Meteorology (IUM), Beijing 100089, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jia","family":"Guo","sequence":"additional","affiliation":[{"name":"Beijing Metstar Radar CO., LTD, Beijing 100085, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9795-3064","authenticated-orcid":false,"given":"Haonan","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Electrical and Computer Enginereing, Colorado State University, Fort Collins, CO 80523, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Meilin","family":"Yang","sequence":"additional","affiliation":[{"name":"Institute of Urban Meteorology (IUM), Beijing 100089, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mingxuan","family":"Chen","sequence":"additional","affiliation":[{"name":"Institute of Urban Meteorology (IUM), Beijing 100089, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hui","family":"Xiao","sequence":"additional","affiliation":[{"name":"Key Laboratory of Cloud-Precipitation Physics and Severe Storms, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China"},{"name":"University of Chinese Academy of Sciences (UCAS), Beijing 100049, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jianli","family":"Ma","sequence":"additional","affiliation":[{"name":"Institute of Urban Meteorology (IUM), Beijing 100089, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Siteng","family":"Li","sequence":"additional","affiliation":[{"name":"Institute of Urban Meteorology (IUM), Beijing 100089, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,6,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"847","DOI":"10.1175\/2009JHM1059.1","article-title":"Evaluation and comparison of microphysical algorithms in ARW-WRF model simulations of atmospheric river events affecting the California coast","volume":"10","author":"Jankov","year":"2009","journal-title":"J. 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