共查询到17条相似文献，搜索用时 109 毫秒
1.
国产GPSO3与芬兰Vaisala臭氧探空仪的比对试验 总被引：10，自引：0，他引：10
臭氧探空仪是一种主要而又直接的探测大气臭氧垂直分布的技术手段。为了了解国产GPSO3臭氧探空仪的测量精度、灵敏度和可靠性．我们开展了与芬兰Vaisala ECC臭氧探空仪的系列平行比对试验,包括实验室臭氧传感器比对测试．室外地面臭氧传感器比对测试,低压环境下进气柱塞泵(效)比对测试和臭氧探空施放比对试验。测试结果分析表明,国产GPSO3臭氧探空仪的主要指标性能与国际通用的Vaisala臭氧探空仪的相当。 相似文献
2.
通过2010年7月12日—8月1日第8届世界气象组织阳江国际探空比对,采取同球比对施放方式,选择芬兰Vaisala探空仪作为比对标准,对中国参加国际比对的长峰探空仪与华云探空仪,使用共29次同球比对数据,从典型个例分析与统计分析两方面开展系统性评估。初步评估结果表明:对于温度探测,中国长峰探空仪整体系统偏差在0.4℃之内,标准偏差在0.7℃之内,中国华云探空仪在30 km高度以下性能与长峰探空仪相当,但是30 km高度以上偏差明显增大;对于气压与风的探测,两者系统偏差与标准偏差均较小,表明GPS定位以及气压与风的算法准确;对于湿度探测,与芬兰Vaisala探空仪相比,还存在一定差距,特别是低温性能需要提高。 相似文献
3.
4.
5.
对国产臭氧探空仪从2001年4月到2004年9月在北京观测的臭氧垂直分布数据的质量进行分析。对国产臭氧探空仪系统基本测量数据(包括电化学反应池池温、臭氧最大分压及其所在的高度、对流层顶的温度和高度)进行初步分析, 结果发现国产臭氧探空仪的稳定性仍需进一步提高。与地面多谱森臭氧总量观测相比, 国产臭氧探空积分的总量普遍要高,2002年至2003年之间的差别范围基本上保持在±20%以内。与国际普遍使用的双池型电化学(ECC型)臭氧探空观测结果相比, 国产臭氧探空观测臭氧分压在15 km以下、25～30km两个高度范围, 均要高于ECC测值。分析结果建议国产臭氧探空仪应尽快参与由全球大气本底监测(GAW)技术主持的世界臭氧探空仪标定中心进行标定, 并在现有的技术条件下, 向双池型电化学型臭氧探空仪这一方向发展 相似文献
6.
李伟 《南京气象学院学报》2011,(4):346-353
通过比对试验,采取同球比对施放方式,选择德国GRAW探空仪作为比对标准,使用总共12次同球比对数据,对中国长峰、华云和大桥3种型号探空仪的珠状电阻温度传感器开展比对分析.经典型个例分析与统计分析表明:3个型号国产探空仪高空温度廓线与德国GRAW探空仪具有较好的整体一致性,温度测量夜间性能均好于白天;长峰探空仪温度探测性能随高度变化比较稳定,而华云探空仪与大桥探空仪性能相仿,均随高度性能下降,尤其是30km以上高空;长峰探空仪温度探测整体性能最好,相对系统误差在0.2℃左右;而华云探空仪与大桥探空仪误差可达1℃,且均表现为整体上温度测值偏低.体积较小的珠状温度传感器将是未来高空温度探测的一个好的选择,下一步需要改善华云探空仪与大桥探空仪温度传感器表面涂层工艺,两者的温度辐射订正算法也需要进一步完善. 相似文献
7.
利用广东省阳江地区2010年7—8月WMO组织的国际高性能探空系统对比试验数据,对Vaisala RS92型探空仪和国产长峰探空仪的测云性能进行对比分析,并利用同步观测的Vaisala云高计和毫米波雷达数据进行了分析和验证。结果表明:两种探空仪判别的云层垂直结构都能较好地反映阳江的实际的云层情况。对于低云,两种探空仪的探测结果比较接近;对于不密实的云层,两种探空仪都会误判为多层云;对于高云,两种探空仪的判别效果均不理想,长峰探空仪还容易漏判云层。RS92探空仪探测的高云的云底和云顶的平均高度要高于长峰探空仪的探测结果。 相似文献
8.
结合第8届国际探空仪系统比对试验探讨国产气球施放高度 总被引：1，自引：0，他引：1
根据阳江探空站高空气象探测用750g气象气球施放的实际高度的现状,结合中国大探中心组织国产GPS探空仪在阳江用国产2000g气象气球比对试验时施放的高度以及广东阳江第8届国际探空仪系统比对期间施放的实际高度,探讨雨天和高空相对湿度较大的气象条件下对国产气象气球施放高度的影响。结果显示,雨天或高空相对湿度较大时,对国产现有的气象气球施放的高度存在较大的影响。研究表明,解决了国产气象气球的球皮防雨、防潮问题,很大程度上解决了国产气象气球施放高度不稳定的难题。 相似文献
9.
国产GTS1探空仪与VAISALA公司RS92探空仪对比分析 总被引：8，自引：1，他引：7
文章从静态指标与动态对比两个方面,对中国国产GTS1探空仪与芬兰Vaisala公司RS92探空仪的综合性能进行对比.对比结果表明,GTS1探空仪温度存在滞后误差,RS92探空仪湿度测量结果明显好于GTS1探空仪,200hPa以上RS92探空仪气压变化低于GTS1探空仪,测风精度方面RS92探空仪高于GTS1探空仪,850hPa以下和150hPa以上GTS1探空仪测风与RS92探空仪存在1m·s-1以内的系统差,RS92探空仪在整体性能上高于GTS1探空仪. 相似文献
10.
该文介绍了中国科学院大气物理研究所（简称IAP）研制的电化学浓度电池（ECC）型臭氧（O3）探空仪基本性能测试和2013年上半年室外比对观测结果。结果表明:ECC的背景电流（Ibg）在0.1 μA以下或更低;测量O3的响应时间为21~26 s;NO2（SO2）使O3测值偏高（低）;抽气泵低压泵效系数（Cef）在100 hPa高度以下为1.0左右,在该高度以上上升,10 hPa达到1.17±0.10,5 hPa达到1.28±0.16,性能略低于同类进口产品（1.055以下）。国产和进口仪器在气象探空或抽气泵等部件上具有良好兼容性;两者所测O3垂直分布廓线总体一致。IAP O3探空仪O3总量与Brewer光谱仪测值比值为0.9~1.1;Cef和Ibg订正有效降低了IAP O3探空仪在平流层低层与进口仪器测值的差别,这一订正对O3柱浓度在平流层和对流层的贡献分别为约15 DU和4~6 DU;在对流层,IAP O3探空仪测值与进口仪器间的绝对差别稳定且低于0.5 mPa;而平流层受泵效影响较明显。因此,建议IAP O3探空仪提高其Cef的稳定性,参与国际比对测试,国产气象探空平台数据接收处理增加必要的滤波技术以降低平流层探测数据（包括O3）的振荡。 相似文献
11.
ZHANG Jinqiang XUAN Yuejian YAN Xiaolu LIU Mingyuan XIA Xiang ao PANG Li HENG Xiangdong TIAN Hongmin 《大气科学进展》2014,31(4):938-947
12.
Abstract An intercomparison of ozonesondes was held at Vanscoy, Saskatchewan, from 13 to 24 May 1991. The intercomparison, which was sponsored by the WMO and hosted by the Atmospheric Environment Service (AES) of Canada, was attended by scientists from six countries: Canada, Finland Germany, India, Japan and the United States. Four different makes of ozonesondes were used: the ECC sonde, the Brewer‐Mast sonde, the Indian ozonesonde and the Japanese RSH‐KC79 ozonesonde. These represent most of the sonde types that are in routine operation in the Global Ozone Observing System. A balloon payload and telemetry system was developed to accommodate up to eight ozonesondes that could operate independently and transmit data simultaneously to a ground receiver. Ten flights were launched, each carrying 7 or 8 sondes, and a total of 65 successful profile measurements were made. The payloads were carried to altitudes between 35 and 40 km. The measured profiles are used to determine statistically meaningful evaluations of the different sonde types. The results compared with those from previous intercomparisons indicate that there has been a general improvement in performance for most of the types. In addition there appears to have been changes with time in the relative sensitivity to tropospheric ozone for different sonde types. This result should be considered when drawing conclusions regarding trends in tropospheric ozone. 相似文献
13.
利用1996年3月-2003年6月部分时段拉萨、西宁、北京3个站的臭氧探空资料验证了GOME（Global Ozone Monitoring Experiment）卫星臭氧廓线及对流层臭氧柱总量。对比结果表明:在对流层中下层,拉萨和西宁两地GOME与探空的平均偏差小于5%,北京地区平均偏差小于10%;在对流层上层/平流层下层,拉萨和西宁平均偏差小于10%,北京小于20%;在平流层中上层3个站的平均偏差均小于5%。在对流层上层/平流层下层区域,GOME与臭氧探空的平均偏差在北京明显高于拉萨和西宁。3个地区对流层柱总量的平均偏差都在10%以内,表明该资料可用于研究我国对流层臭氧总量的变化规律。同时段的GOME最低层（0~2.5km）月平均臭氧浓度对比结果显示,GOME结果同地面臭氧观测值有很好的相关性,GOME臭氧浓度反映了拉萨、瓦里关、临安地面臭氧浓度的主要变化特征。 相似文献
14.
M. Beekmann G. Ancellet G. Mégie H. G. J. Smit D. Kley 《Journal of Atmospheric Chemistry》1994,19(3):259-288
An intercomparison campaign was conducted at the Observatoire de Haute Provence (OHP) in Southern France in September 1989 in order to compare the three instruments used for vertical tropospheric ozone profiling in the European TOR (Tropospheric Ozone Research Project) network: balloon borne ECC and Brewer-Mast sondes and a ground based UV-DIAL (DifferentialAbsorptionLidar). Additionally, a stratospheric lidar system and the Dobson spectrophotometer of the OHP were operated. Seven simultaneously measured vertical ozone profiles gave evidence for systematic differences of 15% between both types of electrochemical sondes in the troposphere, the Brewer-Mast sondes reading the smaller ozone values. These differences might be explained on the one hand by a possible contamination of the ozone sensor with reducing substances, causing a negative bias mainly for Brewer-Mast sondes and, on the other hand, by the evolution of the sonde background current during the flight, causing a positive bias for ECC sondes and a negative bias for Brewer-Mast sondes. The tropospheric lidar system, measuring the vertical ozone distribution between 6 and 12–15 km, showed ozone concentrations intermediate between the sonde results. This is in good agreement with its estimated systematic error of better than 7% in the upper troposphere. In the stratosphere, the differences between electrochemical sondes and the lidar are between 5 and 10% before the normalisation with the total ozone values measured by the Dobson spectrophotometer, and always below 5% after. While the Dobson normalisation thus corrects rather well the stratospheric part of the sonde profile, it only partially reduces errors occurring in the troposphere. 相似文献
15.
利用国产GPSO3臭氧探空系统观测的大气臭氧探空资料和NCEP再分析资料,结合对天气形势、大气环流背景、高空位涡变化及对流层顶高度扰动的分析,深入研究了2008年冬季北京地区10~14 km高度范围内持续出现的臭氧次峰值及大气臭氧含量异常现象。结果表明:在2008年我国南方雪灾这一特殊时期,引起臭氧垂直分布持续出现次峰值现象及臭氧含量异常的主要原因是平流层空气强烈下沉运动及其与对流层的交换作用,而引起这种下沉运动及平流层-对流层交换则是由于该阶段特殊的天气背景,乌拉尔阻塞高压长时间维持,贝加尔湖到巴尔喀什湖一带横槽稳定存在,里海以东切断低压长期维持,造成冷空气长时间、稳定地南下影响北京上空臭氧的垂直分布。加之副热带急流的出现,北京正处于其入口区左侧,其上空有强烈的辐合下沉运动,有利于平流层空气向下输送。此次臭氧次峰值及臭氧含量异常的现象很好地说明,在冷空气天气过程的影响下,北京地区上空的平流层空气运动及其与对流层的交换十分活跃。 相似文献
16.
AbstractThe ozonesonde stations at Uccle (Belgium) and De Bilt (Netherlands), separated by only 175?km, offer a unique opportunity to test the influence of different ozonesonde types and different correction strategies, as well as to detect the presence of inhomogeneities in the ozonesonde time series resulting from changes in sounding equipment (solution, radiosonde, ozonesonde, interface, sounding software, etc.). In particular, we highlight a 2.5 year period (beginning of 2007 to mid-2009) of anomalous high tropospheric ozone values measured by ozonesondes at Uccle and compare these with the observations from De Bilt. Because the ozone deviations are only observed in the free troposphere where ozone concentrations are relatively low, and not in the boundary layer or the stratosphere, this issue is directly related to the sensitivity of ozonesondes. Therefore, the effect of every instrumental change, even though small, during this 2.5 year anomalous period is analyzed considering a change in the radiosounding equipment, different ozonesonde batches, operational differences at the stations, differences on ascent and descent during the anomalous period; an environmental cause is also examined. Unfortunately, one single, specific cause for the observed high tropospheric ozone values at Uccle could not be identified. There are two explanations consistent with the observations and not ruled out by the analysis here: 1) the majority of the ozonesondes used at Uccle between March 2007 and August 2009 needed longer conditioning of their sensors and, therefore, behaved more accurately at low ozone concentrations during their descent or when used a second time, and 2) an environmental origin arising from a local difference in the air mass between Uccle and De Bilt and between the ascent and descent. 相似文献
17.
During winter 1982/83 and in early 1985, abnormal ozone deficiencies in the stratosphere were recorded at northern midlatitude stations. Ozone variations measured by ozonesondes at Hohenpeissenberg are analysed with respect to dynamic transport variations related to the quasibiennial oscillation (QBO). After the elimination of seasonal fluctuations, long-term trends and average QBO related variations, ozone time series are compared to particle surface area densities derived from lidar measurements of the stratospheric aerosol layer at Garmisch-Partenkirchen. The two stations are only 37 km apart. The analysis reveals that the 1985 ozone minimum is a transport effect, as well as most of the 1982/83 minimum. But at 17 to 20 km in 1982/83, 30 to 40% of the ozone deficiency is most probably related to the aerosol perturbation of the lower stratosphere following the April 1982 eruption of the Mexican volcano El Chichón. 相似文献