Minecraft wiki entry for Noise_generator, associated text: 1 Specifications
1.1 Customization
1.1.1 Old Customized worlds (1.8-1.12)
1.1.2 Custom worlds (1.16+)
2 Types of noise generators
2.1 Terrain noise generators
2.1.1 Low noise
2.1.2 High noise
2.1.3 Selector noise
2.1.4 Depth noise
2.2 Other noise generators
2.2.1 Biome fill noise
2.2.2 Biome distribution
2.2.3 Badlands clay band offset noise
2.2.4 Badlands noise pillar
2.2.5 Swamp noise
2.2.6 Flower noise
2.3 Removed noise generators
2.3.1 Major noise generation prior to Infdev 20100327
2.3.2 Floating island carver noise
2.3.3 Scale noise
2.3.4 Tree density noise
2.3.5 Sand noise
2.3.6 Gravel noise
2.3.7 Biomes prior to Beta 1.8
3 Overflowing
4 References