Mapping Glacier Ablation With a UAV in the North Cascades: A Structure-from-Motion Approach

The glaciers of the North Cascades have experienced mass loss and terminus retreat due to climate change. The meltwater from these glaciers provides a flux of cold glacier meltwater into the river systems, which supports salmon spawning during the late summer dry season. The Nooksack Indian Tribe monitors the outlet flow of the Sholes Glacier within the North Cascades range with the goal of understanding the health of the glacier and the ability of the Tribe to continue to harvest sustainable populations of salmon. This study compares the UAV derived glacier ablation with the discharge data collected by the Tribe. We surveyed the Sholes Glacier twice throughout the 2020 melt season and, using Structure-from-Motion technology, generated high resolution multispectral orthomosaics and Digital Elevation Models (DEMs) of the glacier on each of the survey dates. The DEMs were differenced to reveal the surface height change of the glacier. The spectral data of the orthomosaics were used to conduct IsoData unsupervised classification. This process divided the survey area into Snow, Ice, and Rock classes that were then used to attribute the surface height changes of the DEMs to either snow or ice melt. The analysis revealed the glacier lost an average thickness of −0.132 m per day (m d−1) with snow and ice losing thickness at similar rates, −0.130 m d−1 and −0.132 m d−1 respectively. DEM differencing reveals that a total of −550,161 ± 45,206 m3 water equivalent (w.e.) was discharged into Wells Creek between the survey dates whereas the stream gauge station measured a total discharge of 350,023 m3. This study demonstrates the ability to spectrally classify the UAV data and derive discharge measurements while evaluating the small-scale spatial variability of glacier melt. Assessing ablation in small alpine glaciers is of great importance to downstream communities, like the Nooksack Indian Tribe who seek to understand the magnitude and timing of glacier melt in order to better protect their salmon populations. With this paper, we provide a baseline for future glacier monitoring and the potential to connect the snow surface properties with the rate of snow melt into a warming future.

Operationalizing Peirce’s Syllabus in terms of icons and stereotypes

Peirce’s Syllabus is examined and used to interpret metaphoric iconic stereotypes applied to Indigenous people: “noble savage,” “bloodthirsty savage,” “domestic dependent nation,” “vanishing race,” “Indian tribe,” and “ecological Indian.” Efforts on the part of the Indigenous to replace the these stereotypes with different icons such as “Native American,” “First Nations,” and, most recently, “water protectors,” are also examined. The usefulness of representamen categories from Peirce’s Syllabus, “rhematic,” “Argument,” “dicent,” “indexical,” “qualisign,” “legisign,” and “sinsign,” is demonstrated. Greimas’ observations about the functions of modalities are brought in to explain how graphic images and portraiture, fictional and memoir narratives, legal discourses, and popular media representations implement various sections of the Syllabus. Putting Peirce’s Syllabus into action confirms its ability to perform dynamic, diachronic, and diagrammatic functions.

The Land and Its People

This chapter provides an overview of the geography and settlement history of Terrebonne and Lafourche Parishes, beginning with the presence of indigenous peoples at the time of French colonization, continuing through the French, Spanish, and American historic periods, and ending with the modern distribution of ethnic groups on the landscape. It includes a history of the modern indigenous population, who identify as either Houma or one of several other groups: the Pointe au Chien Indian Tribe or one of two branches of the Biloxi Chitimacha Confederation of Muskogees, and provides an account of the arrival of Francophone Europeans, including Acadians, to the Lafourche Basin. It also considers the implications that slavery had for both historic and modern demographics. Finally, it describes the modern settlement patterns, the means by which people make a living, and the distribution of ethnic groups in the area.

PERANCANGAN BUSANA READY TO WEAR DELUXE DENGAN INSPIRASI THE CULTURE OF ANIMAL SPIRIT DARI SUKU INDIAN

Indian tribes are the people of North America who are famous for their tradition, lifestyle, art and belief as culture tradition. One of the belief tradition is their belief to the spirit of animal which has connection with Indian belief,animism. In animal animism there are several animals which is considered.sacred in the lifecycle of Indians. They are : eagles, bear, and bisons. They are the symbols of life structure to Indian tribes. The combination of the symbols of lifecycle is based on the ways of the winds, seasons, elements, and colors of each of the symbols has become the inspiration of fashion design ready to wear collection deluxe titled OTODEM Throughout OTODEM collection the ethnic but still modern nuances are shown from the shapes and cutting of the clothes. The concept applied on the design adapts the symbols lf animal spirit : eagles, wolves, bear and bison and also from the symbols of ways of the wind, seasons, elements, and colors in every piece of clothing. The symbols are applied on the piece of clothings throughout polyflex screen printing and flocking and the sign motifs, the macrame and stitching technique are used to show the uniqueness of the Indian tribe clothes. The goal is to strengthen the performance and similarities with symbols of Indian tribes. This ready to wear collection is targeted for men and women around 25-35 years old with different backgrounds such as entertainers, designers and public figures with strong and bold characteristics, love challenges and are open to new challenges, curious about ethnics and cultures, and stay in major cities in Indonesia.