GeoCAT USER Guide v1.0 - Dartmoor National Park
Contents
1. ISER Guide v Produced by Dartmoor National Park Information Systems Section March 2008 Version 1 0 Initial Version Change history Introduction Why have a GIS Metadatabase GeoCAT is short for Geographic Information Systems CATalogue and is the Dartmoor National Park Authority s GIS Metadatabase A metadatabase holds data about data and is needed to describe the who what where when and how relating to a map layer the dataset By knowing the answers to these five questions we should begin to understand a bit more about the data we hold and hopefully start to make our way up towards the top of the knowledge pyramid Consider the geographical analogy below Spring of Wisdom It would be great to be up here Streams of understanding Rivers of Knowledge Seas of information Oceans of data this is what we have Figure1 The knowledge pyramid GeoCAT has been designed to be a searchable catalogue of map layers that we hold Map layers can be searched on by name overview abstract the service responsible for their maintenance the original data supplier or the filename on GIS In addition Keywords can be used to search for a map layer This document is designed to outline the steps in using and updating the GeoCAT The first part of the document outlines how to browse the catalogue to find out information about the map layers we hold The second part of this document outlines how to sea2. Version 1 00 was released in April 2005 Version 2 00 supersedes it as of 3 April 2006 Extract from hitp Awww govtalk qov uk schemasstandards metadata asp T GIS Procedures PR40 GeoCAT Metadatabase doc 8 vii Details The Details tab includes further information required by the Gemini II metadata standard The Data Format is shown examples include MapInfo file Access Database or an Excel spreadsheet The Dataset language is shown and a Topic Category is required Gemini II has 19 broad Topic Categories covering many diverse subjects from Society to Oceans For more information on each Topic category press the View Categories button The definition of the topic category is also shown DNPA Contact External Contact Attributes Usage Copyright Data Structure Descriptive Terms Details MapInfo tab English x Categories flora and or fauna in natural environment Examples wildlife vegetation biological sciences ecology wilderness sealife wetlands habitat T GIS Procedures PR40 GeoCAT Metadatabase doc 9 viii History DNPA Contact External Contact Attributes Usage Copyright Data Structure Descriptive Terms Details History Data content date Originator Creator 14 07 2006 Publication date 14 07 2006 Dartmoor National Park Authority v Lineage Generated following an exercise to map and classify all woodland on Dartmoor and because of known errors with S
3. be the National Grid of Great Britain This is the Ordnance Survey Grid that our Eastings and Northings are based on Extent of Coverage is usually Devon or England in some rare cases Spatial Resolution is shown in metres and provides an indication of how detailed the mapping data is If you are recording data captured on a 100m grid square sampling basis the spatial resolution T GIS Procedures PR40 GeoCAT Metadatabase doc 15 would be 100m If the data was recorded against OS MasterMap then the spatial resolution is 0 4m Other values can be set discuss this value with the GIS Officer who will be able to assist Spatial Representation will take one of the following values which can be set from the list Name Definition Vector vector data used to represent geographic data e g Any digital data drawn on a map background Grid grid data used to represent geographic data e g any Raster map which has data stored as a series of coloured dots or pixels Text Table textual or tabular data used to represent geographic data e g mapping created from information held as a spreadsheet Spatial Presentation details the form in which the data is represented to the user Identify the entry in the code list that most closely corresponds to the presentation type of the resource If the presentation type is completely different to any in the list then do not use and mention it in the abstract Name Def
4. layer on GIS G MAPDATA ECOLOGY for example Overview A brief summary of the map layer The overview is searchable so can include any key words or phrases which other people may include in a search Filename Name of the file held on the GIS server Dataset No A unique number used by GeoCAT to refer to the map layer 7 Button Panel Includes buttons for finding layer information and for viewing a map layer in GIS Below the Overview panel are a series of tabs which contain further information about the map layer The information is grouped into themes as shown DNP amp Contact External Contact Attributes Usage Copyright Data Structure Descriptive Terms Details History i DNPA Contact DNPA Contact External Contact Attributes Usage Copyright Data Structure Descriptive Terms Details History DNPA Contact Position Role Jane Marchand Tick if current Archaeologist Section Email Cultural Heritage imarchand dartmoor npa gov uk Telephone 01626 831034 Amend details T GIS Procedures PR40 GeoCAT Metadatabase doc The DNPA Contact form displays the contact details of the best person to contact within DNPA with regard to a specific map layer The name role section telephone and email address are displayed together with a tick to denote whether the contact is still current within DNPA This person should be the first point of contact if you have a particular enquiry about a map layer
5. Window Help Find Data Title Service v Abstract Data Originator v GIS Filename y 7 View Number Title FileName Abstract Section Supplier This is a test Test Thisis is the abstract containing detail about the test record Not Specified NULL 11 50 000 Scale Colour Raster 50krast i 50 000 Scale Colour Raster is Ordnance Survey s definitive raster product ict llos 11 50 000 Scale Black and White Ras SOKBRW i 50 000 Scale Colour Raster is Ordnance Survey s definitive raster product ict los Address Point laddpacs E Edited OS Address Paint Data ICT llos Mas 7 n Te a Cae a a Sr ems ICTs z Es The form allows you to type in a word in the Title Abstract or GIS Filename boxes and or perform a search using the Service DNPA Service name and or the Data Originator drop down boxes Any results are shown underneath with a small summary of the findings To see the data record in more detail click on the View button circled in red above next to the summary Once you have clicked the View button you are looking at an extract of the database If you wish to see another record from the search results you will have to close the main database window using the Back to results button on the main form Section 2b Searching for data using the find by keyword form Pressing the Find by Keyword button on the Overview panel displays the following form File Edit View Insert Format Records T
6. ction 01626 831038 abright dartmoor npa gov uk 01626 834684 http Awww dartmoor npa gov uk Pressing the Amend Details button on the DNPA contact tab brings up the currently selected contact If any details need amending simply use the drop down boxes or fill in the correct text where appropriate If the Position Role of the contact has changed or the Contact Section has changed either choose the correct one from the drop down list or create a new one by pressing the View Edit buttons next to the relevant box A completely new contact can be created by pressing the Add New DNPA Contact button and completing the details as required T GIS Procedures PR40 GeoCAT Metadatabase doc 19 Appendix 2 Edit the Originator Details Pressing the Edit Originator Details button displays all Originator details in a simple spreadsheet which allows for simple updates to addresses etc to be completed New Originators can be created by clicking into the OriginatorAbb box which will create a new sequential Originator D simply fill in all details from left to right All data is saved when the spreadsheet is closed T GIS Procedures PR40 GeoCAT Metadatabase doc 20
7. cure pieces of information from the data standard A full listing of the Gemini II metadata standard is on the Intranet at http dnp4 gis_metadataquidelines2 pdf The Spatial Resolution circled above is worth noting as it gives an indication of the positional accuracy of the mapping layer The figure can be in metres if the data is Vector based or in Dots per inch if the data is Raster based an Aerial photo is an example of a Raster based dataset T GIS Procedures PR40 GeoCAT Metadatabase doc 7 vi Descriptive Terms The Descriptive Terms are key words which help to describe the main features of the map layer They are also part of the Gemini II standard and are based on the Integrated Public Sector Vocabulary IPSV It is possible to search on key words see section 2b DNPA Contact External Contact Attributes Usage Copyright Data Structure Descriptive Terms Details History _ SubjectiD E EM Agriculture 498 Farming 1049 Organic farming 5264 Environmental management systems 7084 Rural economy What is the IPSV The Integrated Public Sector Vocabulary IPSV is an encoding scheme for populating the e GMS Subject element of metadata It is fully compliant with ISO 2788 and BS 8723 the International and British Standards for monolingual thesauri The vocabulary was developed with the backing of the ODPM Office of the Deputy Prime Minister and the eGU Cabinet Office e Government Unit
8. cy of the data For example an atlas might have the reference date 2004 but the data will have been collected over a period prior to this Date of Metadata Date on which the metadata was last changed This is the date at which the metadata can be considered current rather than the dataset itself It may be the date at which the metadata was reviewed and confirmed as being current Note It should not be updated when the metadata is only corrected i e there have been no changes to the data resource itself and the rest of the metadata is not reviewed or confirmed as wholly correct T GIS Procedures PR40 GeoCAT Metadatabase doc 10 Lineage contains information about the events or source data used in the construction of the dataset to give an indication of how the dataset was created It is useful in determining its fitness for purpose Finally the Further Details section is to record references to relevant information held externally to GeoCAT for example a reference e g a URL to background information Strictly speaking it should not be used to hold the external data more a pointer to a file where further information can be found T GIS Procedures PR40 GeoCAT Metadatabase doc 11 Section 2a Searching for data using the find form Pressing the Find button from the Overview panel displays the following form GeoCAT GIS Metadatabase frmFind Form H a File Edit View Insert Format Records Tools
9. ection 3 woodland map It is proposed that this dataset could form a starting point for revision of Section 3 woodland map although it is not known when this might happen Update Frequency not planned v Date of Metadata 14 08 2008 Further Details See G MAPDATAWVYOODSURMSS Woodland checking S3 correction README TxT The History tab groups together information about where the map layer has come from and how up to date it is Where the data has come from can help build a picture as to the map layers fitness for purpose The Originator Creator entry is a chance to review who supplied the dataset the same information as that shown on the External Contact tab The Update Frequency is also shown which can range from Continually or Daily in the case of planning applications through to Irregular or Not Planned The History tab rather strangely contains three different dates These dates are again part of the Gemini II standard and are defined as follows Data Content Date Date and time for the content of the dataset This is the date or date range that identifies the currency of the data It may refer to the period of collection or the date at which it is deemed to be current Publication Date A reference date for the dataset Dataset reference date is an identifying date for the data resource It is a notional date of publication of the resource It is different from Date which is the actual date of the curren
10. efault to English but there are others 9 Complete the History tab Every dataset has three dates connected with it as follows The Data Content Date which includes the date and time for the content of the dataset The Publication Date which includes when the data was first ready for publication The Date of Metadata which includes the date that the Medatadata record was completed The Update Frequency if known can be filled in from the list The Lineage is a free text field to give an indication of how the dataset was created An example follows T GIS Procedures PR40 GeoCAT Metadatabase doc 17 Original data from English Heritage survey department in Exeter Updates for Dartmeet and Throwleigh PALS added in 2008 Attribute SITE_TYPE added to accommodate new information supplied with the Dartmeet and Throwleigh data Original data has Not Supplied in the SITE_TYPE field NAME has a value of Not Supplied added where data is blank Further Details should include any references to other data sources that give more detailed information on the dataset Example see G MAPDATA EN AncientWoodlandInv Ancient Woodland Inventory Readme doc T GIS Procedures PR40 GeoCAT Metadatabase doc 18 Appendix 1 Adding Amending DNPA contact details Pressing the Amend details button displays the Add Edit DNPA Contact form as shown Add Edit DNPA Contact wn Cac Ali Bright 5 M ICT Manager F Roles Se
11. he Descriptive Terms tab Place your cursor in the Descriptive Term box and start typing the word that best describes the dataset If the word is one used in the integrated public sector vocabulary it will appear and will automatically complete the SubjectID Pressing the drop down arrow to the right of the Descriptive T GIS Procedures PR40 GeoCAT Metadatabase doc Term box will reveal more terms that could be used Remember these words are used to search for datasets so try and be as broad as possible with the descriptive terms See the following examples Conservation Areas SubjectiD Descriptive Term 1138 Planning town and country 2296 Tree preservation 2298 Tree preservation orders 2631 Tree protection 2652 Conservation areas Public Rights of way SubjectiD Descriptive Term 409 Bridleways 446 Access to countryside 449 Rights of way 1464 Rambling 2634 Public rights of way 2636 Foot paths rural 2640 Byways 7146 Access to open country 8 Complete the Details tab The details Tab tells the user what format the data is in it will usually be a MapInfo TAB file but others can be set such as access databases and excel spreadsheets Next choose a Topic category from the available list You can view the categories by pressing the View Categories button to get a better understanding of what each one represents Finally ensure that the Language is set this will d
12. ii External Contact DNPA Contact External Contact Attributes Usage Copyright Data Structure Descriptive Terms Details History Originator Environment Agency gt Tel 08708 506 506 Edit Originator Details Website www environment agency gov uk Fax Notes P A i Address with 11 500 members of staff and a budget of around 850 million the EA are the biggest organisation protecting and improving the environment in England and Wales The EA deal with individual members No of the public community groups industry farmers businesses of all sizes and the Government Addr1 Customer Contact Centre Addr2 PO Box 544 Addr3 Addr4 ROTHERHAM County PostCode S60 1BY v Supplier Contact Trevor Linford z Tel 01756 799919 Email flood mappina environment agency gov uk Edit Supplier Contact The External Contact form displays any notes and contact details of the organisation who supplied the map layer to DNPA The telephone number website and fax number as well as the postal address if known are displayed The website text is clickable and will open a website in a browser window Organisations such as the Environment Agency and Natural England supply lots of different map layers If there is a named individual within the organisation their details can be shown as the Supplier Contact Check with the DNPA contact first if no specific supplier contact is shown iii Attributes Many GIS layers have informati
13. inition document digital digital representation of a primarily textual item can contain illustrations also document hardcopy representation of a primarily textual item can contain illustrations also on paper photographic material or other media image digital likeness of something acquired through sensing and stored in digital format image hardcopy likeness of something acquired through sensing and reproduced on paper photographic material or other media for use directly by the human user map digital map represented in raster or vector form map hardcopy map printed on paper photographic material or other media model digital multi dimensional digital representation of a feature process etc model hardcopy 3 dimensional physical model profile digital vertical cross section in digital form profile hardcopy vertical cross section printed on paper etc table digital digital representation of facts or figures systematically displayed especially in columns table hardcopy representation of facts or figures systematically displayed especially in columns printed on paper photographic material or other media video digital digital video recording video hardcopy video recording on film Finally the Dataset Boundary can be selected from the drop down list usually this is Dartmoor National Park but some datasets we hold are Devon wide 7 Complete t
14. nal Park Authority Licence No 100024842 2008 http Avww ordnancesurvey co uk oswebsite business copyright purpose internet html Most map layers have copyright or usage constraints associated with them Many of the DNPA map layers are copyright OS because they have been drawn on top of OS Maps but others include Aerial Survey companies and Government agencies that also require the correct copyright information included in any publication The Access Constraints panel tells the user whether the map layer is licensed or restricted in any way If there are particular restrictions usually copyright then these are listed together with who holds the copyright and the actual wording that needs to be displayed in the form of the Copyright Statement Any links or relevant information regarding usage or copyright can be shown in the Copyright Details section at the bottom of the form T GIS Procedures PR40 GeoCAT Metadatabase doc 6 v Data Structure DNPA Contact External Contact Attributes Usage Copyright Descriptive Terms Details History National Grid of Great Britain Dartmoor National Park oy E map digital z 50 23 29 GeoCAT has been built to comply with a metadata standard called Gemini II Some parts of the standard include sections that detail information that goes beyond what many people would use everyday for the map catalogue The Data Structure page displays some of the more obs
15. on attached Examples include planning reference numbers or the description of an Ancient Monument These are called the attributes of the map layer DNPA Contact External Contact Attributes Usage Copyright Data Structure Descriptive Terms Details History AttributeName AttributeType gt Ref Char 10 Reference name Area_Ha Decimal 10 2 Area of the Park in Hectares E Source Char 250 How the dataset was created The attributes screen is a list showing the attribute name the attribute type i e is the information stored as a piece of text a date or a number and a description of the attribute It should start to give an impression of the sort of information a map layer contains T GIS Procedures PR40 GeoCAT Metadatabase doc 5 iv Usage Copyright DNPA Contact External Contact Attributes Usage Copyright Data Structure Descriptive Terms Details formal permission required for use usually requiring payment of a fee Copyright iv Ordnance Survey v lt ForA4 Maps and smaller use gt Crown copyright All rights reserved Dartmoor National Park Authority Licence No 100024842 2008 lt For Maps larger than Ad use gt Reproduced from the Ordnance Survey mapping with the permission of the Controller of Her Majesty s Stationery Office Crown copyright Unauthorised reproduction infringes Crown copyright and may lead to prosecution or civil proceedings Dartmoor Natio
16. ools Window Help Find by Keyword gt Keyword z Number File Name Title Term keyword 09devo11 Grid of 1 10560 historic mapping 1886 to 1893 GIS 15 geographic information systems ma e pe ea of 1 10560 historic mapping 1886 to 1893 i T GIS Procedures PR40 GeoCAT Metadatabase doc 12 Type in a keyword in the Keyword box and press Find Keywords are those entered under the Descriptive Terms tab If any GIS layers are found press the View button circled in red next to the dataset you wish to view Section 3 Adding new records to GeoCAT e 1 Enter the following information in the Overview panel Press the button on the Overview panel shown circled in red This will add a new blank dataset ready to be filled in Name Short Name or Other Name to refer to the dataset Filename The name of the data files e g Bats SSSI S8Moor Location File location of the dataset on the GIS server followed by a backslash e g G MAPDATA PLANNING Overview A brief narrative summary of the dataset It should provide a clear and concise statement that enables the reader to understand the content of the dataset Tips for filling in this entry are as follows Tips for completing the Overview State what the things are that are recorded State the key aspects recorded about these things State what form the data takes State any other limiting informa
17. rch for map layers and the final part outlines how to add a new map layer to the catalogue T GIS Procedures PR40 GeoCAT Metadatabase doc 2 Main features of the GeoCAT window 1 2 3 4 5 6 7 Eson fs awaa omen SSS Boundary of the Dartmoor National Park Authority as agreed with the Countryside Agency in 2006 3 c l A gt E gt i oO gt O DNPA Contact External Contact Attributes Usage Copyright Data Structure Descriptive Terms Details History 15 11 2006 20 11 2006 Countryside Agency X DNPA boundary captured to Ordnance Survey MasterMap using a combination of Countryside Agency and DNPA pre PAl boundary data approx 1 1000 scale 23002007 Details Panel Record 4 f 6 b gt of 113 UK GEMINI Element 10 Info about the events or source data used in the construction of the dataset NUM Figure 2 The GeoCAT window T GIS Procedures PR40 GeoCAT Metadatabase doc Section 1 Browsing the GeoCAT database Overview window GeoCAT opens with the screen shown above The window is split into two main sections the overview panel and the details panel The Overview panel is always visible from the main window and contains the following 1 Button Panel Includes record navigation and add new buttons to move from one record to the next or add new map layers to the catalogue Name Contains a short name to refer to the map layer Location File location of the map
18. rom 1 to 6 as follows 1 Mr 2 Mrs 3 Miss 4 Ms 5 Dr 6 Unknown 4 Complete the Attributes tab The Attributes section requires the Attribute Name Attribute Type and Attribute Description to be completed The Maplnfo TAB file can be used to complete the first two sets of data leaving just the attribute descriptions to be completed To extract the attributes from a Maplnfo tab file follow the steps below i Open up the Maplnfo TAB file in notepad Itable Iversion 300 Icharset WindowsLatin1 Definition Table Type NATIVE Charset WindowsLatin1 Fields 3 Ref Char 10 Area_Ha Decimal 10 2 Source Char 250 Etc Highlight and Copy the lines under the Fields n statement in the tab file shown in Blue these are the Attribute Name and Attribute Type entries Open up the Excel Spreadsheet called AttributeExtractor xls in S GIS_Metadata click into cell A2 which has a red outline and choose paste Highlight and Copy the contents of Columns D and E as shown Close the Excel spreadsheet Do NOT save when prompted T GIS Procedures PR40 GeoCAT Metadatabase doc 14 D Here s the attribute name Here s the attribute type ID Integer Common_name Char 100 i Char 100 Char 100 Char 20 Char 14 Char 14 Char 20 Char 45 Char 100 Char 254 Char 254 Go back into GeoCAT and click into the top left corner of the Attributes
19. table as shown circled below DNPA Contact External Contact Attributes Usage Copyright Data Structure Descriptive Terms Details History aE AttributeType AttributeDesc Ns am This will highlight the entire table Next Right Click the mouse and choose Paste This will populate all entries for Attribute Name and Attribute Type You now have to complete the Attribute description with a simple definition of each attribute so that others can understand Have a look at descriptions from other datasets to get an idea of what to fill in here 5 Complete the Usage Copyright tab The Access Constraints panel tells the user whether the map layer is licensed or restricted in any way Its default is formal permission required for use usually requiring payment of a fee By far the majority of our data will be subject to some form of copyright Use the drop down arrow under Use Constraints to set the copyright Choose the correct copyright statement by using the drop down arrow next to the Copyright Required box This will automatically populate the copyright statement and any additional details in the Copyright details box at the bottom of the form 6 Complete the Data Structure tab This tab gives the user an idea of the structure of the dataset such as the file type and how the information is stored its accuracy and the extent of the dataset The Spatial Reference System unless expressly stated otherwise will always
20. tion such as time period of validity of the data Add purpose of data resource where relevant e g for survey data Aim to be understood by non experts Do not include general background information oOo N DOO fF WO YP Avoid jargon and unexplained abbreviations Example Sites of Special Scientific Interest in Wales classified by habitat type with the limit of each SSSI recorded as a polygon as at 2001 06 30 2 Complete the DNPA Contact tab Normally this involves selecting the relevant DNPA contact from the drop down box provided and you may move on to the next database tab If anew DNPA contact is required or the existing details are wrong press the amend details button and follow the steps in Appendix 1 T GIS Procedures PR40 GeoCAT Metadatabase doc 13 3 Complete the External Contact tab Normally this involves selecting the relevant External Contact from the Originator drop down list which will automatically complete the Website Telephone Fax Address details if known and Notes If the Originator details are missing or incorrect these can be changed by pressing the Edit Originator Details button and following the steps in Appendix 2 If you know of a specific named person within the Supplier Organisation they can be added by pressing the Edit Supplier Contact button and completing the SupplierContactFullName box and other details from left to right The SupplierContactTitlelD requires a number f
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