baj23_GIS

    What's important in a map?      Maps play an important role in presenting information. Maps has many parts that come together to present/ represent the data within the map. Some parts of a map are the Title, North Arrow (orientation), Scale Bar, Data Source (citing source), and a Legend (to identify symbology and map features).  Good Map Designs     Good map designs always has a Title to them. Sub-titles can be used to elaborate or close in on the topic of the map to help direct the reader's attention to the map details. In the map below, the designer provided a nice Title, but utilized subtitles and short summary to give the readers clarity to what the map wants to present to it's audience. Another important aspect of a good designed map is map layout. This map maintain a balanced presentation with clear borderlines and placed in strategic positions that didn't distract the reader from the main map.  Poorly Design Map     ...

  Hi guys,  My name is Brittany and I am a graduate student in the GIS Administration program. I graduated with a degree in Environmental Sciences with a concentration in Field Methodology and Field Ecology. I was introduced to GIS during my undergraduate courses and after graduation, I obtained a GIS certification and wanted to seek a career in the GIS field. I currently work in food service, but I aspire to work for a state or federal agency just like my parents did.  I live with 3 other girls who were apartment-mates during my college days and we are the best of friends and enjoy the fun times in our apartment. A fun fact about me is my passion for hot tea. I am a fan of traditional green, black and white teas and it relates to my origins from China and Chinese culture.  I was adopted by my parents who are also Chinese and raised me as their own. I have an adopted brother but we are so close to each other that we don't notice any difference. Check out my story thr...

 Introduction to Unsupervised and Supervised Classification in ERDAS In this week's lab we learned how to review and edit unsupervised and supervised classifications of aerial imagery. Through ERDAS Imagine you can set limits to the number of classes that each pixel could represent the categories. You can also reclassify the categories into to better summarize the image.  Additionally, you can combine classifications by recoding the attributes and by doing so assigns a value that new categories are classified as. In our lab, after classifying each attribute to 5 classes we calculated the areas of each category. Since our data was using land classifications of forest, water, and agriculture areas we calculated the total area of permeable ( where water can be absorb into the soil such as vegetation, gravel, or turf) and impermeable ( where water is unable to be easily absorbs into the soil such as buildings, sidewalks, parking lots etc.).  Supervised Classifications has a a...

In the lab, we learned how to apply spatial enhancements, perform a multispectral analysis, and create band indices. We also observe significant differences and improvements to imagery.  Used a grayscale symbology to analyze pixel values spikes between 12-18. Bodies of water are represented by the darkest shade (black). Explored a focal statistic with a 3x3 kernel to see what changed. Lines are much sharper and in areas in the image where urban areas are present the buildings seemed to be outlined in lighter shades. This kind of imaging can be replicated simply using RGB values of 5, 4, 3, and pixel values between 12-18 in band 4 within ERDAS Imagine. Within True color imagery, urban areas and snow is represented by white and/or pale coloring. Then exploring if the same coloration will apply for another display of band colors. Despite having high pixel values within bands 1-4 and bands 5 and 7 are with the lower values. RGB values 1, 3, and 4 highlight snow and urban areas' similar...

 Objective:  Recognize and understand functions of ERDAS Imagine Recognize differences to four types resolutions Interpret and analyze thematic raster in ERDAS Imagine Description     To prevent potential program crashes in ArcGIS Pro, we can use ERDAS Imagine to create and make adjustment to the map so that the data can be transferred smoothly. 

 Summary Utilize observation skills to create a land use/ land classification map of Pascagoula, MS aerial map. Classified land use according to the USGS Standard Land Use/ Land Cover Classification System (LULC)  through Level I/ II codes and descriptions. Took random sample points through the map and apply "ground truth" to these locations and investigate the accuracy of my LULC classifications. 

 Identifying Features in Aerial Photographs Lab objectives  Understand gradient levels of tone and texture present in aerial photos.  Deduct and identify attributes in photos based on hints provided in shadows, shapes, and other factors.  Recognize differences in true color imaging and false-color infrared imaging