NASA's text:

Blizzard in New Zealand

As the clouds broke over South Island, New Zealand, on July 11, 2003, clear skies revealed the blanket of snow that remained from what is being reported as the worst blizzard to hit the country in 50 years. The bright white snow contrasts sharply with the deep green vegetation of the coastal areas as well as with the bright blue, glacier-fed lakes scattered across the Southern Alps, which run diagonally across the island. The blizzard stranded hundreds of motorists and isolated more than 400 skiers at a mountain resort. In places, the storm brought ice and freezing rain, making roads especially treacherous and bringing down trees and power lines.

This image was captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Terra satellite. The high-resolution image provided above is 500 meters per pixel. The MODIS Rapid Response System provides this image at MODIS’ maximum spatial resolution of 250 meters.

Image courtesy Jacques Descloitres, MODIS Rapid Response Team at NASA GSFC.

SOURCE: http://earthobservatory.nasa.gov/NaturalHazards/shownh.php3?img_id=10797^{[失效链接]}
”The purpose of NASA's Earth Observatory is to provide a freely-accessible publication on the Internet where the public can obtain new satellite imagery and scientific information about our home planet. The focus is on Earth's climate and environmental change. In particular, we hope our site is useful to public media and educators. Any and all materials published on the Earth Observatory are freely available for re-publication or re-use, except where copyright is indicated. We ask that NASA's Earth Observatory be given credit for its original materials.”

	本文件完全由NASA创作，在美国属于公有领域。根据NASA的版权方针，NASA的材料除非另有声明否则不受版权保护。（参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。）
	警告: 使用NASA的标志、徽章、徽标等受到美国法律14 CFR 1221的限制。 NASA网站大量存储来自苏联或俄罗斯航天机构的图片，以及其他非美国的航天机构图片。这些文件不一定属于公有领域。 根据哈勃空间望远镜的数据制作的材料，如果不是明确声明由STScI提供，则可能受到版权保护。[1]参见{{PD-Hubble}}和{{Cc-Hubble}}。 SOHO（ESA和NASA）联合项目表示，由旗下的探测器创作的材料受版权保护，且对于商业性非教育目使用材料需要授权。[2] 每日一天文图（APOD）网站上展示的图片可能受到版权保护。[3] 国家太空科学数据中心（NSSDC）网站据信存储了受版权保护内容。其图库常见问答表明除非另有声明，图库的所有图片都属于公有领域。