https://padlet.com/Ahmad_03/7reyy033zeajwb65 AHMAD ID'HAM BIN AHMAD NAWARI | 2021851912 | RAP1204H en-us 2023-04-10 14:49:53 UTC 2023-08-19 10:22:45 UTC hello@padlet.com Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2548894174 -Scheme of work
-Study calendar
-Schedule]]> 2023-04-10 14:52:24 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2548894174 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2548894506 Data acquisition > Data processing > Result analysis / manipulation > Outcome]]> 2023-04-10 14:52:42 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2548894506 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2548895915 2023-04-10 14:53:55 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2548895915 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2548896162 As a GIS analysis, the requirement to be an spatial are to have a strong IT skills. This is because, there are many software been produce to help the analysis skill nowadays. Second, the GIS analysis must have ability to manipulate a complex data. Every data may have the problem, and it depends on the spatial analysis to solve the problem. Third, spatial analysis must have experience with mapping tools such as vector and raster data and spatial modelling. With the experience, the data process will be smooth as butter. Spatial analysis also must have high creativity to plays around with the app and tool to improve the information streams.]]> 2023-04-10 14:54:10 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2548896162 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2548896565 Spatial data analysis in modelling will reveal the data of geometric and geographic information (x,y,z). Spatial analysis derives insight from spatial data, which provides a numerical representation of any physical entity in an geographic coordinate system. Geometric data of spatial information onto 2D surfaces. Geographic data representing the latitude and longitude of entity or location is overlaid on a sphere, where the sphere represent as the earth.]]> 2023-04-10 14:54:33 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2548896565 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2548896853 2023-04-10 14:54:49 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2548896853 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2555674879 2023-04-16 09:54:26 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2555674879 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2555675854 2023-04-16 09:57:02 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2555675854 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2555676170 1. Raster data model represent as grid data. Every grid contain a values base on nearest or average number.
2. area measurement, environment monitoring, natural disaster, land use planning, area comparison
3. first, user can check the accuracy of how close the data by comparing the result with real world projection such as aerial photo. Second, check the how the data been documentation. Complete data will be documented in proper document, all information are clear with method and data quality standards. Lastly, consider the source of data. The source data is important when evaluating its quality.
4. ******]]> 2023-04-16 09:57:49 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2555676170 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2556522795 SLT 8 JAM (20%)
DUE DATE: 17 APRIL 2023
https://docs.google.com/document/d/153mbhQO9-GDCCvuWMpmtjZaVLME5c9aP/edit?usp=sharing&ouid=113741373789148576977&rtpof=true&sd=true]]> 2023-04-17 07:01:55 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2556522795 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2598711871 2023-05-21 09:24:28 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2598711871 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2598712170 2023-05-21 09:25:06 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2598712170 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627111767 To investigate the land used type existed in the Riparian Zone
a) Sabah land used (oil palm)
b) Sabah land used (primary forest)
c) Sabah land used (secondary forest)
d) Sabah land used (paddy)
e) Sabah land used (urbanization)
f) Sabah land used (swamp)
g) Riparian Zone must be 50 meters from Sabah river 
Outline the suitable diagrams using suitable raster overly to find type of land used]]> 2023-06-19 12:30:26 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627111767 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627177321 Definition
The process of superimposed (overlaying) multiple feature class to analysis the relationship between overlay feature and merge many feature class

Method
- Union (or)
- Erase
- Append
- Identity
- Merge
- Update
- Intersect
- Clip]]> 2023-06-19 13:59:25 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627177321 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627181234 2023-06-19 14:04:36 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627181234 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627181941 2023-06-19 14:05:32 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627181941 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627187799 Raster analysis it better for visualization and modelling or environmental phenomena

example is data
spot high -> raster -> continuous surface]]> 2023-06-19 14:12:58 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627187799 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627190645 - Digital Surface Model (DSM) data will real all information on the ground
- Data may come from:
  * Orthophoto
  * LIDAR

- Overlay raster data should be in raster format

- Digital Elevation Model (EDM)
  * Create elevation
  * Coordinate in GDM 2000 / Kertau RSO (RSO) Meters
  * Vector (contour line)]]> 2023-06-19 14:16:29 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627190645 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627197825 Query
- select by attribute
- Select by location

Vector overlay analysis
- structure vector (point, line, polygon)
- clip, update, append
- union, or, nor, not
- method: digitizing, spot height

Raster overlay analysis
- structure grid/pixel
- satellite image, orthophoto, airborne
- method: combine operation, neighbourhood analysis, zonal, local operation]]> 2023-06-19 14:25:44 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627197825 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627204447 - Vector based
- Can be in GPS point data
- Consist of nodes that contain information of height, non overlapping triangular, connected by edges from contiguous
- TIN can be in very small size
- TIN created in mass point, break line, exclusion polygon]]> 2023-06-19 14:35:23 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627204447 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627207742 Question 1
The topographic digital map scale 1:25000 (.shp) is provided by JUPEM to the student foe special project implementation. You are required for special project implementation. You are required to explain the methodology involves to produce the slope map using data source

Ans:
...]]> 2023-06-19 14:40:06 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627207742 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627210239 Question 2
DEM is essential to present the surface elevation and several websites have provided an access to download data freely. You are requested an appropriate FEM data in any format. Outline the process of 3D analysis to generate elevation and slope map using the properad DEM data

Ans:
... ]]> 2023-06-19 14:44:03 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627210239 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627211308 - Estimation of surface value of unsampled points based on known surface value of surrounding pointts
- Estimate elevation, rainfall, temperature, chemical distribution
- Commonly use raster data
- Can be done in vector environment by apply TIN]]> 2023-06-19 14:45:27 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627211308 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627218956 2023-06-19 14:57:15 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2627218956 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2641157036 - system of interconnected linear features through which the mass or information is transported
- to stop travel rampory we used "barrier"]]> 2023-07-09 17:03:54 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2641157036 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2641157465 Method
1.  observed
2. predicted]]> 2023-07-09 17:06:05 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2641157465 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2641157718 comparison between predicted or observed are using RMSE, MSE, MAPE
RMSE - Root mean square
MSE - Mean square error
MAPE - mean absolute percent error]]> 2023-07-09 17:07:23 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2641157718 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648715001 Digitizing has been one of important skill that spatial analysis need to know. They load the data in the software, using raster model from satellite, scanned maps, etc... Then create the new feature class and put the suitable name on the field. Start digitize by click on the "Create" then choose suitable digitize tool that we have line, point and polygon. Then start digitize the map based on the feature shape. finally, save the file other related thing]]> 2023-07-20 16:53:23 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648715001 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648718107 After digitizing work has been done, analysis or technician muse ensure all the data is complete and overlap between other data. The user have to add new file geodatabase, and put suitable name, such as error topology. Then, import feature class in the geodatabase (landused and road) to check the error on the digitizing. After that right click on the geodatabase and select the "Topology" and select all the feature has been insert and choose the rule, for example "must not have dangle" where this command let the user know which data has been digitize outside the boundary.]]> 2023-07-20 17:02:47 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648718107 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648721638 There are several of analysis can be done using this method, for example we used data. We can perform:
1. Map projection transformation
The user can change the coordinate system based on the datum that should be use, example, WGS84 (worldwide projection) to Kertau RSO Malaya Meters (Malaysia mapping projection)
2. Clip
User can used clip to select the two different overlap feature, and make it become one data layer
3. Extract by Mask
The user can use extract by mask when the input data are in raster model, the function have similarity with clip.

]]> 2023-07-20 17:11:47 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648721638 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648722035 4. Buffer
user can set the buffer zone by insert any relevant value based on the requirement of job spec. for example, we set 200 m buffer zone using road.]]> 2023-07-20 17:13:08 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648722035 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648722310 6. Reclassify
Using the raster data, we can set the classify color ether manually or auto by using the software calculator. for example, I set 5 color to different the color of DEM of the Perlis region]]> 2023-07-20 17:14:10 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648722310 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648722408 5. Intersect
the user can perform intersect to identify the feature that within the area of the buffer]]> 2023-07-20 17:14:28 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648722408 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648723705 User need the data of DEM, then perform the contour by select "Contour" in analysis tools on surface model. After that select "Create TIN" to perform the triangle process.]]> 2023-07-20 17:19:03 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648723705 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648724446 The interpolation are using the weather data, where user can used kriging, IDW, Natural Neighbor and spatial analysis tool.]]> 2023-07-20 17:21:04 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648724446 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648725389 2023-07-20 17:24:36 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2648725389 Ahmad_03 https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2666346232 2023-08-19 10:22:39 UTC https://padlet.com/Ahmad_03/7reyy033zeajwb65/wish/2666346232