diff --git a/_posts/2024-12-21-2005.md b/_posts/2024-12-21-2005.md
index 175f817..cc78946 100644
--- a/_posts/2024-12-21-2005.md
+++ b/_posts/2024-12-21-2005.md
@@ -5,11 +5,25 @@ categories: [科研]
 tags: [科研]
 math: true
 ---
+# what
+什么是revelle factor?
 
-[^footnote]
+[缓冲因子](https://www.zgbk.com/ecph/words?SiteID=1&ID=525082)
+
+有学者[^footnote]定义了
+   $\gamma_{DIC}$ , $\beta_{DIC}$ , $\omega_{DCI}$, $\gamma_{Alk}$, $\beta_{Alk}$, $\omega_{Alk}$
+缓冲因子
+[^fn-nth-2]
+
+# how
+## 计算方法
+在淡水中，忽略硼酸的影响，公式可以简化成[^fn-nth-3]：
 
 
 $$ Revelle\ Factor = TCO_2  \{ [CO_2]  + [CO_3^{2-}]  \}^{-1} $$
 
+$\beta_{DIC}$ 可通过r包[SeaCarb](https://cran.r-project.org/web/packages/seacarb/index.html)计算
 
-[^footnote]:Zhang W, Wang W, Zhong J, et al. Carbon sequestration and decreased CO2 emission caused by biological carbon pump effect: Insights from diel hydrochemical variations in subtropical karst reservoirs[J]. Journal of Hydrology, 2024, 632: 130909.
+[^footnote]:Egleston E S, Sabine C L, Morel F M M. Revelle revisited: Buffer factors that quantify the response of ocean chemistry to changes in DIC and alkalinity[J]. Global Biogeochemical Cycles, 2010, 24(1).
+[^fn-nth-2]:黄江浔,李清光,安丽,等.喀斯特小流域地表水碳酸盐系统化学平衡对酸性矿山废水的缓冲作用[J].中国岩溶,2023,42(01):19-28.
+[^fn-nth-3]:Zhang W, Wang W, Zhong J, et al. Carbon sequestration and decreased CO2 emission caused by biological carbon pump effect: Insights from diel hydrochemical variations in subtropical karst reservoirs[J]. Journal of Hydrology, 2024, 632: 130909.