−80−60−40−200204060800.00.20.40.60.81.01.21.41.61.82.02.22.42.62.83.0North PoleSouth PoleEquatorDepth (meters)Name: Prometheus Latitude: -85.075 Depth: 0 Diameter: 1164.22 Layers: 0Name: Reynolds Latitude: -74.964 Depth: 2.11 Diameter: 90.69 Layers: 0Name: Stoney Latitude: -69.608 Depth: 0.89 Diameter: 161.37 Layers: 0Name: Von K Latitude: -64.288 Depth: 1.86 Diameter: 90.3 Layers: 0Name: Mendel Latitude: -58.761 Depth: 1.78 Diameter: 76.54 Layers: 0Name: Coblentz Latitude: -54.891 Depth: 0.35 Diameter: 95.54 Layers: 0Name: Green Latitude: -52.301 Depth: 1.95 Diameter: 182.07 Layers: 0Name: Halley Latitude: -48.342 Depth: 2.52 Diameter: 83.72 Layers: 0Name: Tivat Latitude: -45.932 Depth: 0.38 Diameter: 3.26 Layers: 2Name: Camiri Latitude: -44.655 Depth: 0.49 Diameter: 31.36 Layers: 0Name: Gali Latitude: -43.752 Depth: 2.02 Diameter: 25.86 Layers: 0Name: Sokol Latitude: -42.374 Depth: 1.65 Diameter: 22.18 Layers: 0Name: Arkhangelsky Latitude: -41.088 Depth: 2.17 Diameter: 116.83 Layers: 0Name: Hartwig Latitude: -38.659 Depth: 1.99 Diameter: 99.33 Layers: 0Name: Vik Latitude: -36.095 Depth: 0.97 Diameter: 22.32 Layers: 2Name: Los Latitude: -35.078 Depth: 0.99 Diameter: 7.77 Layers: 1Name: Shatskiy Latitude: -32.357 Depth: 1.79 Diameter: 69.46 Layers: 0Name: Tignish Latitude: -30.736 Depth: 1.58 Diameter: 20.98 Layers: 2Name: Zumba Latitude: -28.418 Depth: 0 Diameter: 2.9 Layers: 0Name: Molesworth Latitude: -27.486 Depth: 0.98 Diameter: 175.21 Layers: 0Name: Lenya Latitude: -26.719 Depth: 0.33 Diameter: 14.96 Layers: 0Name: Lar Latitude: -25.833 Depth: 0.49 Diameter: 7.39 Layers: 0Name: Ruby Latitude: -25.231 Depth: 0.85 Diameter: 26.43 Layers: 0Name: Kantang Latitude: -24.429 Depth: 1.56 Diameter: 52.44 Layers: 0Name: Cluny Latitude: -23.857 Depth: 1.29 Diameter: 14.84 Layers: 0Name: Karshi Latitude: -23.266 Depth: 0.39 Diameter: 21.52 Layers: 0Name: Bend Latitude: -22.398 Depth: 0 Diameter: 3.96 Layers: 0Name: Gr Latitude: -21.473 Depth: 0.28 Diameter: 37.31 Layers: 0Name: Shambe Latitude: -20.58 Depth: 1.11 Diameter: 35.58 Layers: 0Name: Noord Latitude: -19.269 Depth: 0.79 Diameter: 7.94 Layers: 1Name: Saravan Latitude: -16.93 Depth: 1.47 Diameter: 45.54 Layers: 0Name: Galdakao Latitude: -13.339 Depth: 0.87 Diameter: 33.44 Layers: 0Name: Jarry-Desloges Latitude: -9.375 Depth: 2.55 Diameter: 93.36 Layers: 0Name: Wink Latitude: -6.493 Depth: 0.74 Diameter: 10.16 Layers: 1Name: Kaid Latitude: -4.445 Depth: 0.79 Diameter: 7.97 Layers: 1Name: Zarand Latitude: -3.409 Depth: 0 Diameter: 2.72 Layers: 0Name: Zulanka Latitude: -2.269 Depth: 0.72 Diameter: 43.36 Layers: 0Name: Teisserenc de Bort Latitude: 0.433 Depth: 1.78 Diameter: 114.89 Layers: 0Name: Crommelin Latitude: 5.078 Depth: 1.45 Diameter: 110.08 Layers: 0Name: Ehden Latitude: 8.217 Depth: 2.2 Diameter: 57.4 Layers: 0Name: Marth Latitude: 12.931 Depth: 2.12 Diameter: 96.69 Layers: 0Name: Tavua Latitude: 15.623 Depth: 1.95 Diameter: 31.56 Layers: 3Name: Kular Latitude: 16.388 Depth: 0.79 Diameter: 8.05 Layers: 1Name: Toro Latitude: 17.035 Depth: 1.91 Diameter: 41.4 Layers: 3Name: Darvel Latitude: 17.784 Depth: 0.94 Diameter: 22.36 Layers: 2Name: Bland Latitude: 18.292 Depth: 0.1 Diameter: 6.63 Layers: 0Name: Zuni Latitude: 19.222 Depth: 0.97 Diameter: 24.29 Layers: 2Name: Sian Latitude: 19.964 Depth: 0.66 Diameter: 4.06 Layers: 1Name: Bok Latitude: 20.582 Depth: 0.53 Diameter: 7.34 Layers: 1Name: Lisboa Latitude: 21.237 Depth: 0 Diameter: 1.42 Layers: 0Name: Rauch Latitude: 21.558 Depth: 0.72 Diameter: 32.9 Layers: 0Name: Dank Latitude: 21.955 Depth: 0.91 Diameter: 8.79 Layers: 1Name: Dush Latitude: 22.485 Depth: 0 Diameter: 2.39 Layers: 0Name: Albany Latitude: 22.959 Depth: 0 Diameter: 2.15 Layers: 0Name: Goff Latitude: 23.265 Depth: 1.12 Diameter: 7.95 Layers: 1Name: Bremerhaven Latitude: 23.689 Depth: 0 Diameter: 2.69 Layers: 0Name: Sabo Latitude: 25.174 Depth: 0.71 Diameter: 4.39 Layers: 1Name: Maggini Latitude: 27.777 Depth: 1.18 Diameter: 139.06 Layers: 0Name: Fenagh Latitude: 34.288 Depth: 0.86 Diameter: 6.22 Layers: 1Name: Chom Latitude: 38.574 Depth: 0.14 Diameter: 5.58 Layers: 0Name: Loja Latitude: 41.214 Depth: 0.75 Diameter: 10.15 Layers: 1Name: Umatac Latitude: 42.519 Depth: 0.52 Diameter: 17.16 Layers: 2Name: Orinda Latitude: 45.375 Depth: 0.21 Diameter: 9.11 Layers: 3Name: Canberra Latitude: 47.207 Depth: 0.03 Diameter: 3.16 Layers: 1Name: Kaliningrad Latitude: 48.477 Depth: 0 Diameter: 1.75 Layers: 0Name: Louth Latitude: 70.173 Depth: 1.41 Diameter: 36.28 Layers: 1

MARS CRATER DEPTHS

Modded Visualization by Sreekar Gadasu

Depth Legend

02.55

The visualization offers visitors a mesmerizing journey through the Martian landscape, showcasing the vast diversity of craters scattered across the planet's surface. Through a modded D3-based visualization, we present an immersive exploration of the global dataset containing a part of approximately 380,000 Martian craters.

The design features an interactive interface that allows users to navigate the Martian terrain and delve into individual craters. Each crater is represented as a unique triangle, with attributes such as latitude location, diameter, depth, and number of layers of soil encoded using visual channels like color, triangle-height, base-length, and number concentric circles. Visitors can interact with the visualization to hover on specific regions, to clearly observe the highlighted triangle to read the shape of the crater.

y-axis depth of the crater
x-axis: latitude location of the crater
base-length of the triangle: diameter of the crater
number of concentric circles: number of soil layers

-> From the visualization, one can understand that the number of craters in northern hemi-sphere of Mars is higher than that of southern hemi-sphere.

Category of Custom Visualization: Modded
The visualization falls into the category of "Modded" custom visualization because it builds upon existing D3 techniques. We integrate multiple attributes from the dataset into a single cohesive visualization. This involves mapping the attributes to visual channels such as position (x-axis for latitude, y-axis for depth), size (base length of triangle, size of concentric circles), and color (for additional encoding).