本数据为黑河上游祁连山西部近620年降水重建序列数据，数据采集地点为黑河上游祁连山中西部山区，重建序列时间为1390年-2008年，旨在研究研究黑河流域绿洲化、荒漠化过程及其驱动机制。
\n\n本数据表共有2字段：日期、年降水量，数据类型：浮点型，量纲（度量单位）：月降水量：（mm）。
", "ds_source": "采样，前处理、量测，建立年代，利用树木年轮信息恢复区域环境变化。
", "ds_process_way": "实验室分析测试获得。
", "ds_quality": "严格按照仪器操作规范进行分析测试，满足各代用指标精度要求。
", "ds_acq_start_time": "1390-01-01 00:00:00", "ds_acq_end_time": "2008-12-31 00:00:00", "ds_acq_place": "甘肃省酒泉市火烧沟", "ds_acq_lon_east": 98.06666666666666, "ds_acq_lat_south": 39.516666666666666, "ds_acq_lon_west": 98.06666666666666, "ds_acq_lat_north": 39.516666666666666, "ds_acq_alt_low": 3000.0, "ds_acq_alt_high": 3500.0, "ds_share_type": "apply-access", "ds_total_size": 702841, "ds_files_count": 4, "ds_format": "Excel", "ds_space_res": null, "ds_time_res": "年", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "f6806adf-3293-4073-9f8d-5e9669db4123.png", "ds_thumb_from": 2, "ds_ref_way": "杨保，黑河上游河西地区近620年降水重建序列数据集，国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2020，doi：10.12072/ncdc.973Desert.db0018.2020", "paper_ref_way": "", "ds_ref_instruction": "使用本数据集时，请在文章中引用以下文献：Yang B, Qin C, Br¨auning A, et al. Rainfall history for the Hexi Corridor in the arid northwest China during the past 620 years derived from tree rings [J]. International Journal of Climatology, 2011,31(8):1166-1176", "ds_from_station": null, "organization_id": "eb2b3ac4-919d-433d-b987-bcee1ae83c9e", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 3, "publish_time": "2021-01-09 19:27:24", "last_updated": "2021-01-09 19:27:24", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.973Desert.2020.149", "i18n": { "en": { "title": "Precipitation reconstruction sequence data set of Hexi area in the upper reaches of Heihe River in recent 620 years", "ds_format": "", "ds_source": "Sampling, preprocessing, measuring, establishing the age, and using tree ring information to recover regional environmental changes
", "ds_quality": "The analysis and test are carried out in strict accordance with the instrument operation specifications to meet the accuracy requirements of each substitute index.
", "ds_ref_way": "", "ds_abstract": "This data is the precipitation reconstruction sequence data of the western part of Qilian Mountains in the upper reaches of Heihe River in recent 620 years. The data are collected in the middle and western mountain areas of the upper reaches of Heihe River. The reconstruction sequence is from 1390 to 2008. The purpose of this study is to study the process and driving mechanism of oasis and desertification in Heihe River Basin.
\nThis data table has 2 fields: date and annual precipitation, data type: floating point type, dimension (unit of measurement): Monthly Precipitation: (mm).
", "ds_time_res": "年", "ds_acq_place": "Huoshaogou, Jiuquan City, Gansu Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Obtained by laboratory analysis and test
", "ds_ref_instruction": " " } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "https://creativecommons.org/licenses/by/4.0/", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "降水序列", "降水", "年降水量" ], "ds_subject_tags": [ "水文气象学" ], "ds_class_tags": [], "ds_locus_tags": [ "火烧沟", "甘肃省", "祁连山西部", "酒泉市", "黑河上游" ], "ds_time_tags": [ 1390, 1391, 1392, 1393, 1394, 1395, 1396, 1397, 1398, 1399, 1400, 1401, 1402, 1403, 1404, 1405, 1406, 1407, 1408, 1409, 1410, 1411, 1412, 1413, 1414, 1415, 1416, 1417, 1418, 1419, 1420, 1421, 1422, 1423, 1424, 1425, 1426, 1427, 1428, 1429, 1430, 1431, 1432, 1433, 1434, 1435, 1436, 1437, 1438, 1439, 1440, 1441, 1442, 1443, 1444, 1445, 1446, 1447, 1448, 1449, 1450, 1451, 1452, 1453, 1454, 1455, 1456, 1457, 1458, 1459, 1460, 1461, 1462, 1463, 1464, 1465, 1466, 1467, 1468, 1469, 1470, 1471, 1472, 1473, 1474, 1475, 1476, 1477, 1478, 1479, 1480, 1481, 1482, 1483, 1484, 1485, 1486, 1487, 1488, 1489, 1490, 1491, 1492, 1493, 1494, 1495, 1496, 1497, 1498, 1499, 1500, 1501, 1502, 1503, 1504, 1505, 1506, 1507, 1508, 1509, 1510, 1511, 1512, 1513, 1514, 1515, 1516, 1517, 1518, 1519, 1520, 1521, 1522, 1523, 1524, 1525, 1526, 1527, 1528, 1529, 1530, 1531, 1532, 1533, 1534, 1535, 1536, 1537, 1538, 1539, 1540, 1541, 1542, 1543, 1544, 1545, 1546, 1547, 1548, 1549, 1550, 1551, 1552, 1553, 1554, 1555, 1556, 1557, 1558, 1559, 1560, 1561, 1562, 1563, 1564, 1565, 1566, 1567, 1568, 1569, 1570, 1571, 1572, 1573, 1574, 1575, 1576, 1577, 1578, 1579, 1580, 1581, 1582, 1583, 1584, 1585, 1586, 1587, 1588, 1589, 1590, 1591, 1592, 1593, 1594, 1595, 1596, 1597, 1598, 1599, 1600, 1601, 1602, 1603, 1604, 1605, 1606, 1607, 1608, 1609, 1610, 1611, 1612, 1613, 1614, 1615, 1616, 1617, 1618, 1619, 1620, 1621, 1622, 1623, 1624, 1625, 1626, 1627, 1628, 1629, 1630, 1631, 1632, 1633, 1634, 1635, 1636, 1637, 1638, 1639, 1640, 1641, 1642, 1643, 1644, 1645, 1646, 1647, 1648, 1649, 1650, 1651, 1652, 1653, 1654, 1655, 1656, 1657, 1658, 1659, 1660, 1661, 1662, 1663, 1664, 1665, 1666, 1667, 1668, 1669, 1670, 1671, 1672, 1673, 1674, 1675, 1676, 1677, 1678, 1679, 1680, 1681, 1682, 1683, 1684, 1685, 1686, 1687, 1688, 1689, 1690, 1691, 1692, 1693, 1694, 1695, 1696, 1697, 1698, 1699, 1700, 1701, 1702, 1703, 1704, 1705, 1706, 1707, 1708, 1709, 1710, 1711, 1712, 1713, 1714, 1715, 1716, 1717, 1718, 1719, 1720, 1721, 1722, 1723, 1724, 1725, 1726, 1727, 1728, 1729, 1730, 1731, 1732, 1733, 1734, 1735, 1736, 1737, 1738, 1739, 1740, 1741, 1742, 1743, 1744, 1745, 1746, 1747, 1748, 1749, 1750, 1751, 1752, 1753, 1754, 1755, 1756, 1757, 1758, 1759, 1760, 1761, 1762, 1763, 1764, 1765, 1766, 1767, 1768, 1769, 1770, 1771, 1772, 1773, 1774, 1775, 1776, 1777, 1778, 1779, 1780, 1781, 1782, 1783, 1784, 1785, 1786, 1787, 1788, 1789, 1790, 1791, 1792, 1793, 1794, 1795, 1796, 1797, 1798, 1799, 1800, 1801, 1802, 1803, 1804, 1805, 1806, 1807, 1808, 1809, 1810, 1811, 1812, 1813, 1814, 1815, 1816, 1817, 1818, 1819, 1820, 1821, 1822, 1823, 1824, 1825, 1826, 1827, 1828, 1829, 1830, 1831, 1832, 1833, 1834, 1835, 1836, 1837, 1838, 1839, 1840, 1841, 1842, 1843, 1844, 1845, 1846, 1847, 1848, 1849, 1850, 1851, 1852, 1853, 1854, 1855, 1856, 1857, 1858, 1859, 1860, 1861, 1862, 1863, 1864, 1865, 1866, 1867, 1868, 1869, 1870, 1871, 1872, 1873, 1874, 1875, 1876, 1877, 1878, 1879, 1880, 1881, 1882, 1883, 1884, 1885, 1886, 1887, 1888, 1889, 1890, 1891, 1892, 1893, 1894, 1895, 1896, 1897, 1898, 1899, 1900, 1901, 1902, 1903, 1904, 1905, 1906, 1907, 1908, 1909, 1910, 1911, 1912, 1913, 1914, 1915, 1916, 1917, 1918, 1919, 1920, 1921, 1922, 1923, 1924, 1925, 1926, 1927, 1928, 1929, 1930, 1931, 1932, 1933, 1934, 1935, 1936, 1937, 1938, 1939, 1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 ], "ds_contributors": [ { "true_name": "杨保", "email": "", "work_for": "淮海工学院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "杨保", "email": "", "work_for": "淮海工学院", "country": "中国" } ], "ds_managers": [ { "true_name": "王涛", "email": "wangtao@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" }, { "true_name": "杨保", "email": "", "work_for": "淮海工学院", "country": "中国" } ], "category": "气象" }