이러한 Landsat 4 TM 컴포지트는 계산된 대기권 상단 (TOA) 반사율을 사용하여 레벨 L1T 직교 보정 장면에서 만들어집니다. TOA 계산에 관한 자세한 내용은 Chander et al. (2009)을 참고하세요. 2017년 5월 1일 이후 USGS에서 더 이상 Pre-Collection Landsat을 생산하지 않으므로 이 컬렉션은 완료되었습니다. 다음으로 전환하세요.
[[["이해하기 쉬움","easyToUnderstand","thumb-up"],["문제가 해결됨","solvedMyProblem","thumb-up"],["기타","otherUp","thumb-up"]],[["필요한 정보가 없음","missingTheInformationINeed","thumb-down"],["너무 복잡함/단계 수가 너무 많음","tooComplicatedTooManySteps","thumb-down"],["오래됨","outOfDate","thumb-down"],["번역 문제","translationIssue","thumb-down"],["샘플/코드 문제","samplesCodeIssue","thumb-down"],["기타","otherDown","thumb-down"]],[],[],["This dataset, LANDSAT/LT4_L1T_ANNUAL_NDVI, from USGS, is a collection of Landsat 4 TM annual composites derived from Level L1T orthorectified scenes. The Normalized Difference Vegetation Index (NDVI) is calculated using Near-IR and Red bands, with values ranging from -1 to 1. Composites are created yearly, including all images from that year, with the most recent pixel used. This collection covers 1982-1993 and is now complete and deprecated, users should now switch to Collection 1-based datasets. Data is public domain and free for research, education, and nonprofit use.\n"]]