Assessments and Taxation Database, MD Property View 2004, Baltimore County

Assessments and Taxation (A and T) Database from MD Property View 2004 for Baltimore County. The A and T Database contains parcel data from the State Department of Assessments and Taxation; it incorporates parcel ownership and address information, parcel valuation information and basic information about the land and structure(s) associated with a given parcel. These data form the basis for the 2004 Database, which also includes selected Computer Assisted Mass Appraisal (CAMA) characteristics, text descriptions to make parcel code field data more readily accessible and logical True/False fields which identify parcels with certain characteristics. Documentation for A and T, including a thorough definition for all attributes is enclosed. Complete Property View documentation can be found at http://www.mdp.state.md.us/data/index.htm under the "Technical Background" tab. It should be noted that the A&T Database consists of points and not parcel boundaries. For those areas where parcel polygon data exists the A and T Database can be joined using the ACCTID or a concatenation of the BLOCK and LOT fields, whichever is appropriate. (Spaces may have to be excluded when concatenating the BLOCK and LOT fields). A cursory review of the 2004 version of the A and T Database indicates that it has more accurate data when compared with the 2003 version, particularly with respect to dwelling types. However, for a given record it is not uncommon for numerous fields to be missing attributes. Based on previous version of the A and T Database it is also not unlikely that some of the information is inaccurate. This layer was edited to remove points that did not have a valid location because they failed to geocode. There were 5870 such points. A listing of the deleted points is in the table with the suffix "DeletedRecords." This is part of a collection of 221 Baltimore Ecosystem Study metadata records that point to a geodatabase. The geodatabase is available online and is considerably large. Upon request, and under certain arrangements, it can be shipped on media, such as a usb hard drive. The geodatabase is roughly 51.4 Gb in size, consisting of 4,914 files in 160 folders. Although this metadata record and the others like it are not rich with attributes, it is nonetheless made available because the data that it represents could be indeed useful. This is part of a collection of 221 Baltimore Ecosystem Study metadata records that point to a geodatabase. The geodatabase is available online and is considerably large. Upon request, and under certain arrangements, it can be shipped on media, such as a usb hard drive. The geodatabase is roughly 51.4 Gb in size, consisting of 4,914 files in 160 folders. Although this metadata record and the others like it are not rich with attributes, it is nonetheless made available because the data that it represents could be indeed useful.巴尔的摩县2004年MD物业视图评估与税务（Assessments and Taxation，简称A&T）数据库。A&T数据库包含来自州评估与税务部的地块数据，涵盖地块所有权与地址信息、地块估值信息，以及与指定地块相关的土地及建（构）筑物基础信息。上述数据构成了2004版数据库的核心基础，该库还纳入了精选的计算机辅助批量评估（Computer Assisted Mass Appraisal，简称CAMA）特征字段、用于提升地块代码字段数据可读性与逻辑性的文本描述，以及用于标识具备特定特征地块的逻辑型（True/False）字段。随附A&T数据库的完整文档资料，其中包含所有属性字段的明确定义。完整的MD物业视图文档可于http://www.mdp.state.md.us/data/index.htm的"技术背景"标签页中获取。需注意，A&T数据库存储的是点要素，而非地块边界矢量数据。对于已具备地块面要素数据的区域，可通过ACCTID字段，或BLOCK与LOT字段的拼接结果（视实际场景选择合适方式）实现A&T数据库的关联连接。（拼接BLOCK与LOT字段时需移除其中的空格）对2004版A&T数据库的初步审查显示，相较于2003版，其数据精度有所提升，尤其在住宅类型字段上表现明显。但部分记录的多个字段仍存在属性缺失的情况。结合此前版本A&T数据库的使用经验，部分信息存在不准确的可能性。该要素图层已完成编辑，移除了因地理编码失败而无法获取有效位置的点要素，此类无效点要素共计5870个。已删除点要素的清单存储于后缀为"DeletedRecords"的数据表中。 此为指向地理数据库（Geodatabase）的221条巴尔的摩生态系统研究元数据记录之一。该地理数据库可在线获取，体量较大。经申请并达成特定合作安排后，可通过USB硬盘等介质寄送该数据集。该地理数据库总容量约为51.4 GB，包含160个文件夹下的4914个文件。尽管本元数据记录及其他同类记录的属性字段并不丰富，但鉴于其所承载的数据具备较高实用价值，仍予以公开。 此为指向地理数据库（Geodatabase）的221条巴尔的摩生态系统研究元数据记录之一。该地理数据库可在线获取，体量较大。经申请并达成特定合作安排后，可通过USB硬盘等介质寄送该数据集。该地理数据库总容量约为51.4 GB，包含160个文件夹下的4914个文件。尽管本元数据记录及其他同类记录的属性字段并不丰富，但鉴于其所承载的数据具备较高实用价值，仍予以公开。